'I Did It' Mathematics>Chapter 8 - Understanding Shapes>Exercise 8.3>Q 9

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8th CBSE

IMPORTANT

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If the length of the diagonal of a square is $20 cm$ . If the side of the square is $k \sqrt{2} cm$ , find the value of $k$ .

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Important Questions on Understanding Shapes

MEDIUM

8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 8 - Understanding Shapes>Exercise 8.3>Q 9

If the length of a diagonal of a square is

20 cm

. If the perimeter of the square is

k \sqrt{2}

, find the value of

k

.

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8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 8 - Understanding Shapes>Exercise 8.3>Q 10

Prove that adjacent angles of a parallelogram are supplementary

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8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 8 - Understanding Shapes>HOTS>Q 1

Find the number of sides of a regular polygon where exterior and interior angles are in the ratio

2 : 3

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8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 8 - Understanding Shapes>HOTS>Q 2

In the figure, DISK and DROP both are parallelograms. Find the measure of $∠ S$ in degrees if $∠ O = 83 °$

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8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 8 - Understanding Shapes>Worksheet>Q 1

The sum of all the interior angles of a triangle is _____

°

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8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 8 - Understanding Shapes>Worksheet>Q 1

A quadrilateral has_____diagonals. (Write answer in figure)

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8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 8 - Understanding Shapes>Worksheet>Q 1

A decagon has _____ diagonals. (Write answer in figure)

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8th CBSE

IMPORTANT

'I Did It' Mathematics>Chapter 8 - Understanding Shapes>Worksheet>Q 1

The sum of the angles of a dodecagon is _____

°