NCERT MCQ Questions for Class 7 Maths **The Triangles and its Properties** with Answers PDF Free Download based on the major ideas and themes presented in the textbook as per the CBSE new test pattern are available here. This will help you learn and test your understanding of the chapters. Students can also take a free test of Class 7 Maths Multiple Choice Questions. Each question has four possibilities, each of which is followed by the correct response. These MCQ Questions were chosen in accordance with the most recent CBSE exam format.

## Q1.A triangle has medians

(1)2

(2)1

(3)3

(4) None of these

## Answer

Answer: 3

## Q2.Which is exterior angle of triangle?

(1) ∠BAD

(2) ∠BAC

(3) ∠ABC

(4) ∠BCA

## Answer

Answer: ∠BAD

## Q3.If the angle of a triangle are in the ratio 345, then the angles of the given triangles are

(1) 45, 60, 75

(2) 75, 30, 75

(3) 55, 50, 75

(4) 75, 50, 55

## Answer

Answer: 45, 60, 75

## Q4.A/an connect a vertex of a triangle to the midpoint of the opposite side.

(1) altitude

(2) median

(3) vertex

(4) none of these

## Answer

Answer: median

## Q5.Sum of three angles of a triangle is

(1) 170°

(2) 90°

(3) 180°

(4) None of these

## Answer

Answer: 180°

## Q6.In △ABC is right angled at C. If Ac = 3cm and BC = 4cm then find the length of AB =?

(1)4

(2)3

(3)5

(4)6

## Answer

Answer: 5

## Q7.A triangle has one right angle. What could be the measure of the other two angles?

(1) 20 and 70

(2) 30 and 70

(3) 60 and 20

(4) 30 and 15

## Answer

Answer: 20 and 70

## Q8.If the angles of a triangle are in the ratio 459. Find all the angles of a the triangle

(1) 40 deg, 50 deg , 90 deg

(2) 90 deg, 72 deg, 18 deg

(3) 9 deg, 90 deg, 55 deg

(4) 45 deg, 60 deg, 18 deg

## Answer

Answer: 40 deg, 50 deg , 90 deg

## Q9.In a right triangle, if hypotenuse is H, perpendicular is P and base is B then

(1) B² = H² + P²

(2) H² = P² + B²

(3) H² = P² – B²

(4) P² = B² + H²

## Answer

Answer: H² = P² + B²

## Q10.In a ΔABC, if AB+BC = 10 cm, BC+CA = 12 cm, CA+AB = 16 cm, then the perimeter of the triangle is .

(1) 19cm

(2) 17cm

(3) 28cm

(4) 22cm

## Answer

Answer: 19cm

## Q11.If two angles of the triangle are 20, 80, then the third angle is of

(1)80

(2)100

(3)90

(4) None of those

## Answer

Answer: 80

## Q12.In a ΔABC,which of the given condition holds?

(1) AB−BC>CA

(2) AB+BC

## Answer

Answer: AB−BC

## Q13.If the sum of two angles is greater than 1800, then which of the following is not possible?

(1) tow obtuse angles

(2) two right angles

(3) one reflex and one acute angle

(4) one obtuse and one acute angle

## Answer

Answer: tow obtuse angles

## Q14.Aryan wants to plant a flower on the ground in the form of a rhombus. The diagonals of the rhombus measures 42 cm and 56 cm. Find the perimeter of the field.

(1) 150 cm

(2) 140 cm

(3) 130cm

(4) 120cm

## Answer

Answer: 140 cm

## Q15.The triangle whose lengths of sides are 3 cm, 4 cm, 5 cm is a

(1) obtuse-angled triangle

(2) right-angled triangle

(3) acute-angled triangle

(4) None of these

## Answer

Answer: right-angled triangle

## Q16.How many altitudes can a triangle have?

(1)1

(2)2

(3)3

(4)4

## Answer

Answer: 3

## Q17.One of the angles of a triangle is 110° and the other two angles are equal what is the measure of each of these equal angles

(1) 35°,35°

(2) 40°, 40°

(3) 11°, 11°

(4) 80° , 80°

## Answer

Answer: 35°,35°

## Q18.Which is the longest side in the triangle ABC right angled at B?

(1) AB

(2) AC

(3) BC

(4) None of these

## Answer

Answer: AC

## Q19.Which is the longest side of a right triangle?

(1) Base

(2) Perpendicular

(3) Hypotenuse

(4) None of these

## Answer

Answer: Hypotenuse

## Q20.A/an connect a vertex of a triangle to the midpoint of the opposite side.

(1) altitude

(2) median

(3) vertex

(4) none of these

## Answer

Answer: median

## Q21.If all the angles of a triangle are acute, the triangle is called

(1) obtuse-angled

(2) acute-angled

(3) right-angled

(4) none of these

## Answer

Answer: acute-angled

## Q22.If one angle of a triangle measures 90°, the triangle is called

(1) acute-angled

(2) obtuse-angled

(3) right-angled

(4) none of these

## Answer

Answer: right-angled

## Q23.If one angle of a triangle is obtuse, the triangle is called

(1) acute-angled

(2) obtuse-angled

(3) right-angled

(4) none of these

## Answer

Answer: obtuse-angled

## Q24.How many medians can a triangle have?

(1)1

(2)2

(3)3

(4)4

## Answer

Answer: 3

## Q25.The total measure of the three angles of a triangle is

(1) 360°

(2) 90°

(3) 180°

(4) none of these

## Answer

Answer: 180°

## Q26.If two sides of a triangle are not equal the triangle is called

(1) scalene

(2) isosceles

(3) equilateral

(4) right-angled

## Answer

Answer: scalene

## Q27.Which of the following statement is false?

(1) The sum of the lengths of any two sides of a triangle is less than the third side

(2) In a right-angled triangle, the square on the hypotenuse = sum of the squares on the legs

(3) If the Pythagorean property holds, the triangle must be right-angled

(4) The diagonal of a rectangle produce ‘by itself the same area as produced by its length and breadth

## Answer

Answer: The sum of the lengths of any two sides of a triangle is less than the third side

## Q28.Two angles of a triangle measure 90° and 30°. The measure of the third angle is

(1) 90°

(2) 30°

(3) 60°

(4) 120°

## Answer

Answer: 60°

## Q29.The ratio of the measures of the three angles of a triangle is 2 3 4. The measure of the largest angle is

(1) 80°

(2) 60°

(3) 40°

(4) 180°

## Answer

Answer: 80°

## Q30.Least number of possible acute angles in a triangle is

(1)0

(2)1

(3)2

(4)3

## Answer

Answer: 2

## Q31.Maximum number of possible obtuse angles in a triangle is

(1)0

(2)1

(3)2

(4)3

## Answer

Answer: 1

## Q32.The measure of each angle of an equilateral triangle is

(1) 30°

(2) 60°

(3) 90°

(4) 45°

## Answer

Answer: 60°

## Q33.Which of the following cannot be the sides of a right triangle?

(1) 2 cm, 2 cm, 4 cm

(2) 5 cm, 12 cm; 13 cm

(3) 6 cm, 8 cm, 10 cm

(4) 3 cm; 4 cm; 5 cm

## Answer

Answer: 2 cm, 2 cm, 4 cm

## Q34.In a ΔABC, which of the given condition holds?

(1) AB − BC > CA

(2) AB + BC < CA

(3) AB − BC < CA

(4) AB + CA < BC

## Answer

Answer: AB − BC < CA

## Q35.If all the three sides of a triangle are equal, the triangle is called

(1) equilateral

(2) right-angled

(3) isosceles

(4) scalene

## Answer

Answer: equilateral

## Q36.How many elements are there in a triangle?

(1)3

(2)6

(3)4

(4) None of these.

## Answer

Answer: 6

## Q37.How many vertices does a triangle have?

(1)1

(2)2

(3)3

(4)4

## Answer

Answer: 3

## Q38.How many sides are there in a triangle?

(1)1

(2)2

(3)3

(4)4

## Answer

Answer: 3

## Q39.How many angles are there in a triangle?

(1)1

(2)2

(3)3

(4)4

## Answer

Answer: 3

## Q40.If two sides of a triangle are not equal, the triangle is called

(1) scalene

(2) isosceles

(3) equilateral

(4) right-angled

## Answer

Answer: scalene

## Q41.If two sides of a triangle are equal, the triangle is called

(1) isosceles

(2) equilateral

(3) scalene

(4) right-angled

## Answer

Answer: isosceles