Question

A rectangular pane of glass is 91.1 cm wide and 155.9 cm long, and its area is equal to the length multiplied by the width. Using the correct number of significant figures, what is the area of the glass?

14,200 cm2
14,202 cm2
14,202.5 cm2
14,202.49 cm2

Answer 1

option (a)

Step-by-step explanation:

width, w = 91.1 cm, length, l = 155.9 cm

Area = length x width

Area = 155.9 x 91.1 = 14202.49 cm^2

There should be three significant figures in the result.

Area = 14200 cm^2

Answer 2

We are given:

A rectangular glass pane with

W = 91.1 cm
L = 155.9 cm

We are asked to determine the area of the rectangle. The formula of the area of the rectangle is

A = l x w
A = 91.1 cm x 155.9 cm
A = 14202.49 cm^2