Are you looking for DAV Maths Solutions for class 8 then you are in right place, we have discussed the solution of the Secondary Mathematics book which is followed in all DAV School. Solutions are given below with proper Explanation please bookmark our website for further update !! All the Best !!

1. PQRS is a trapezium with PQ || SR. if L P = 30°, L Q = 50°, find L R and L S.

Answer:

2. ABCD is a quadrilateral with L A = 80°, L B = 40°, L C = 140°, L D = 100°.

(i) Is ABCD a trapezium?

(ii) Is ABCD a parallelogram? Justify your answer.

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3. One of the angles of a parallelogram is 75°. Find the measures of the remaining angles of the parallelogram.

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4. Two adjacent angles of a parallelogram are in the ratio 1 : 5. Find all the angles of the parallelogram.

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5. An exterior angle of a parallelogram is 110°. Find the angles of the parallelogram.

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6. Two adjacent sides of a parallelogram are in the ratio 3 : 8 and its perimeter is 110 cm. Find the sides of the parallelogram.

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7. One side of a parallelogram is 3/4 times its adjacent side. If the perimeter of the parallelogram is 70 cm, find the sides of the parallelogram.

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8. ABCD is a parallelogram whose diagonals intersect each other at right angles. If the length of the diagonals is 6 cm and 8 cm, find the lengths of all the sides of the parallelogram.

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9. In figure 11.19, one pair of adjacent sides of a parallelogram is in the ratio 3 : 4. If one of its angles, L A is a right angle and diagonal BD = 10 cm, find the

(i) lengths of the sides of the parallelogram.

(ii) perimeter of the parallelogram.

Answer:

10.ABCD is a quadrilateral in which AB = CD and AD = BC . Show that it is a parallelogram. [Hint: Draw one of the diagonals.]

Are you looking for DAV Maths Solutions for class 8 then you are in right place, we have discussed the solution of the Secondary Mathematics book which is followed in all DAV School. Solutions are given below with proper Explanation please bookmark our website for further update !! All the Best !!

Chapter 11 Understanding Quadrilaterals Worksheet 21. PQRS is a trapezium with PQ || SR. if L P = 30°, L Q = 50°, find L R and L S.Answer:2. ABCD is a quadrilateral with L A = 80°, L B = 40°, L C = 140°, L D = 100°.(i) Is ABCD a trapezium?(ii) Is ABCD a parallelogram? Justify your answer.Answer:3. One of the angles of a parallelogram is 75°. Find the measures of the remaining angles of the parallelogram.Answer:4. Two adjacent angles of a parallelogram are in the ratio 1 : 5. Find all the angles of the parallelogram.Answer:5. An exterior angle of a parallelogram is 110°. Find the angles of the parallelogram.Answer:6. Two adjacent sides of a parallelogram are in the ratio 3 : 8 and its perimeter is 110 cm. Find the sides of the parallelogram.Answer:7. One side of a parallelogram is 3/4 times its adjacent side. If the perimeter of the parallelogram is 70 cm, find the sides of the parallelogram.Answer:8. ABCD is a parallelogram whose diagonals intersect each other at right angles. If the length of the diagonals is 6 cm and 8 cm, find the lengths of all the sides of the parallelogram.Answer:9. In figure 11.19, one pair of adjacent sides of a parallelogram is in the ratio 3 : 4. If one of its angles, L A is a right angle and diagonal BD = 10 cm, find the(i) lengths of the sides of the parallelogram.(ii) perimeter of the parallelogram.Answer:10.ABCD is a quadrilateral in which AB = CD and AD = BC . Show that it is a parallelogram. [Hint: Draw one of the diagonals.]Answer:## Danveer Singh