Question

Use the formula for the surface area of a right rectangular prism to find the surface area of a shape with the following measurements: length = 4.5 cm, width = 3.5 cm, and height = 2.5 cm.(1 point)
Responses

71.5 cm2
71.5 cm squared

63 cm2
63 cm squared

35.75 cm2
35.75 cm squared

10.5 cm2

Answer 1

The formula for the surface area of a right rectangular prism is given by:

SA = 2lw + 2lh + 2wh

Using the given measurements:

l = 4.5 cm
w = 3.5 cm
h = 2.5 cm

Substitute these values into the formula:

SA = 2(4.5)(3.5) + 2(4.5)(2.5) + 2(3.5)(2.5)

Calculate the expression:

SA = 31.5 + 22.5 + 17.5

SA = 71.5 cm²

Therefore, the surface area of the shape is 71.5 cm².