Mathematics>Chapter 11 - Understanding Quadrilaterals>TEST YOUR SKILLS>Q 3

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8th CBSE

IMPORTANT

Earn 100

$RICE$ is a rhombus in the given figure, find $x, y$ and $z$ . Justify your answer.

Important Questions on Understanding Quadrilaterals

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8th CBSE

IMPORTANT

Mathematics>Chapter 11 - Understanding Quadrilaterals>TEST YOUR SKILLS>Q 4

In the given figure $∠ A = 5 x - 8$ and $∠ B = 3 x + 4$ , find all the angles of the trapezium $ABCD$ in which $AB ‖ DC$ and $AD = BC$ .

. Question Image

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8th CBSE

IMPORTANT

Mathematics>Chapter 11 - Understanding Quadrilaterals>TEST YOUR SKILLS>Q 5

The adjacent sides of a parallelogram are in the ratio

3 : 8

and its perimeter is

220 cm

. Find the sides of the parallelogram.

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8th CBSE

IMPORTANT

Mathematics>Chapter 11 - Understanding Quadrilaterals>TEST YOUR SKILLS>Q 6

Prove that the diagonals of a rhombus bisect each other at

90 °

.

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8th CBSE

IMPORTANT

Mathematics>Chapter 11 - Understanding Quadrilaterals>TEST YOUR SKILLS>Q 7

ABCD

is a rhombus if

∠ ADB = 50 °

. Find other angles of the rhombus.

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8th CBSE

IMPORTANT

Mathematics>Chapter 11 - Understanding Quadrilaterals>TEST YOUR SKILLS>Q 8

Prove that if the diagonal of a parallelogram bisects a pair of opposite angles then it is a rhombus.

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8th CBSE

IMPORTANT

Mathematics>Chapter 11 - Understanding Quadrilaterals>Multiple Choice Questions>Q 1

The two adjacent angles of a parallelogram are

(2 x + 5) °

and

(3 x - 10) °

then the angles are

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8th CBSE

IMPORTANT

Mathematics>Chapter 11 - Understanding Quadrilaterals>Multiple Choice Questions>Q 2

The two adjacent angles of a trapezium are in the ratio

2 : 3

then the angles are

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8th CBSE

IMPORTANT

Mathematics>Chapter 11 - Understanding Quadrilaterals>Multiple Choice Questions>Q 3

Two adjacent sides of a parallelogram are in the ratio $3 : 4$ . If its perimeter is $56 cm$ the sides are