Area of Triangle

Q.

A local park is 32 m long and its width is half of the length. It has two right-triangular grass lawns with the following dimensions. The local gardener wanted to renovate the park so he hired some men. The men agreed to work on the grass lawn at ₹​ 1.2 per sq metre and put new footpath at ₹ 0.80 per sq metre. What is the total cost the gardener will have to pay after the work is done?

1. ₹​ 431.2

2. ₹​ 368.4

3. ₹​ 512

4. ₹​ 421.8

Q.

Find the area of the following shape (in sq. cm) [4 MARKS]

1. = 40 cm${}^2$

2. = 36 cm${}^2$

3. = 24 cm${}^2$

4. = 48 cm${}^2$

Q.

Find the area of figure given below (in sq. inches).

1. 48

2. 64

3. 84

4. 96

Q.

If the area of a triangle is $49c{m}^2$ and its base is double the corresponding height, then find the height of the triangle.

1. 6 cm

2. 9 cm

3. 24 cm

4. 7 cm

Q.

Find the area of the following shape (in sq. cm)

1. 24

2. 12

3. 48

4. 36

Q.

An isosceles triangle has perimeter 36 cm. If each of the equal sides is 10 cm long, then the area of the triangle is _____ cm${}^2$.

1. 48

2. 38

3. 44

4. 45

Q.

In the given shelf which is right angled at A, AB = AC = 48 inches. Find the area of the shelf.

​

1. 1155 sq. inches

2. 1142 sq. inches

3. 1152 sq. inches

4. 1158 sq. inches

Q.

If the cost of levelling a triangular field at the rate of ₹20 per square meter is ₹9600, then the area of the field is ___ sq m.

1. 480
2. 450
3. 430
4. 400

Q.

What is the area of a right triangle whose height is 6 inches and base is 8 inches?

1. 24 Square Inches

2. 48 Square Inches

3. 30 Square Inches

4. 60 Square Inches

Q.

Find the area of figure given below (in sq. inches).

1. 96
2. 48
3. 64
4. 84