MATHEMATICS>Chapter 12 - Heron's Formula>TEST YOURSELF>Q 2

MEDIUM

9th CBSE

IMPORTANT

Earn 100

Find the area of a quadrilateral $A B C D$ in which $A B = 9 m, B C = 40 m, C D = 15 m, ∠ B = 90 °$ and $D A = 28 m$ .

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Important Questions on Heron's Formula

EASY

9th CBSE

IMPORTANT

MATHEMATICS>Chapter 12 - Heron's Formula>TEST YOURSELF>Q 3

The adjacent sides of a parallelogram are

36 c m

and

27 c m

in length. If the distance between the shorter sides is

12 c m

. If the distance between the longer sides is

h cm

, find the value of

h

.

EASY

9th CBSE

IMPORTANT

MATHEMATICS>Chapter 12 - Heron's Formula>TEST YOURSELF>Q 4

The base of an isosceles triangle measure

24 c m

and its area is

192 c m^{2}

. If its perimeter is

k cm

, find the value of

k

.

HARD

9th CBSE

IMPORTANT

MATHEMATICS>Chapter 12 - Heron's Formula>TEST YOURSELF>Q 5

If the area of a trapezium whose parallel sides

11 m

and

25 m

long and the non-parallel sides are

15 m

and

13 m

long is

k m^{2}

, find the value of

k

.

MEDIUM

9th CBSE

IMPORTANT

MATHEMATICS>Chapter 12 - Heron's Formula>TEST YOURSELF>Q 6

A rhombus shaped field has been green grass for

18

cows to graze. If each side of the rhombus is

30 m

and its longer diagonals is

48 m

. If the area of grass field each cow gets is

k m^{2}

, find the value of

k

MEDIUM

9th CBSE

IMPORTANT

MATHEMATICS>Chapter 12 - Heron's Formula>TEST YOURSELF>Q 7

A kite in the shape of a square with a diagonal

32 c m

and an isosceles triangle of base

8 c m

and side

6 c m

each is to be made of three different shades as shown is Figure. How much paper of each shade has been used in it.
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MEDIUM

9th CBSE

IMPORTANT

MATHEMATICS>Chapter 12 - Heron's Formula>TEST YOURSELF>Q 8

The sides of the triangular plot are in the ratio of

3 : 5 : 7

and its perimeter is

300 m

. If its area is

k \sqrt{3} m^{2}

, find the value of

k

.