Question

In the net of a rectangular prism, each square of the grid is 1 square meter. What is the surface area of the prism?

Answer 1

Answer: 172 square meter square

Step-by-step explanation:

Area of Rectangular prism is given as :

A = 2 (wl + hl + hw)

Where :

w = width

h = height

l = length

Calculating the area of rectangular prism given , the shape given is divided into six segments , each segment is a triangle , all we need to do is to find the area of each segment and add.

Area of the first segment = 7 x 8 = 56 ( there are 7 boxes horizontally and 8 boxes vertically)

second segment = 2 x 8 = 16

third segment = 7 x 8 = 56

fourth = 2 x 8 = 16

fifth = 2 x 7 = 14

sixth segment = 2 x 7 = 14

Therefore , area of the rectangular prism will be

A = 56 + 16 +56 + 16 + 14 + 14

A = 172