Question

Te surface area of a right rectangular prism can be found by fnding the sum of the area of each of the faces of the prism. What is the surface area of a right rectangular prism with length 4 centimeters (cm), width 9 cm, and height 3 cm? (Area of a rectangle is equal to length times width.)

Answer 1

The surface area of right rectangular prism is 150 square centimeter

Solution:

The surface area of a right rectangular prism can be found by finding the sum of the area of each of the faces of the prism

To find: surface area of right rectangular prism

Given that,

length = 4 cm

width = 9 cm

height = 3 cm

The formula for surface area of rectangular prism is given as:

A = 2(lw + hl + hw)

Where, "l" is the length and "h" is the height and "w" is the width

Substituting the given values, we get'

$A = 2(4 \times 9 + 3 \times 4 + 3 \times 9)\\\\A = 2(36+12+27)\\\\A = 2 \times 75\\\\A = 150$

Thus surface area of right rectangular prism is 150 square centimeter