Practice the problems of Math in Focus Grade 5 Workbook Answer Key Chapter 6 Practice 3 Finding the Area of a Triangle to score better marks in the exam.

## Math in Focus Grade 5 Chapter 6 Practice 3 Answer Key Finding the Area of a Triangle

Example

Question 1.

Area of a triangle = _____

= ________

Answer:

Height = 26 m

Base = 17m

Area of the triangle = 1/2 × b × h

= 1/2 × 17 × 26

= **221 m ^{2}**

Question 2.

Area of a triangle = _____

= ________

Answer:

From the above figure Base of the triangle is 72 cm. Height of the triangle is 54 cm.

Area of the triangle = 1/2 × b × h

= 1/2 × 72 × 54

= **1,944 cm ^{2}**

Question 3.

Area of triangle = ____

= _______

Answer:

From the above figure Base of the triangle is 38 ft. Height of the triangle is 45 ft.

Area of the triangle = 1/2 × b × h

= 1/2 × 38 × 45

= **855 ft ^{2}**

**Find the area of each shaded triangle.**

Example

Question 4.

Area = ____

= ______

Answer:

From the above figure Base of the triangle is 12 in. Height of the triangle is 4 in.

Area of the triangle = 1/2 × b × h

= 1/2 × 12 × 4

= **24 in ^{2}**

Question 5.

Area = _____

= ______

Answer:

From the above figure Base of the triangle is 28 in. Height of the triangle is 18 in.

Area of the triangle = 1/2 × b × h

= 1/2 × 28 × 18

= **252 in ^{2}**

Question 6.

Area = _____

= ______

Answer:

From the above figure Base of the triangle is 5 cm. Height of the triangle is 5 cm.

Area of the triangle = 1/2 × b × h

= 1/2 × 5 × 5

=** 25/2 cm ^{2}**

Question 7.

Area = ____

= ______

Answer:

From the above figure Base of the triangle is 7 in. Height of the triangle is 4 in.

Area of the triangle = 1/2 × b × h

= 1/2 × 7 × 4

= **14 in ^{2}**

Question 8.

Area = _____

= _______

Answer:

From the above figure Base of the triangle is 14 in. Height of the triangle is 15 in.

Area of the triangle = 1/2 × b × h

= 1/2 ×14 × 15

=** 105 in ^{2}**