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)
63 cm?
• 71.5 cm?
• 35.75 cm?
10.5 cm?
To find the surface area of a right rectangular prism, we use the formula:
Surface Area = 2lw + 2lh + 2wh
where l = length, w = width, and h = height.
Given:
l = 4.5 cm
w = 3.5 cm
h = 2.5 cm
Substitute the values into the formula:
Surface Area = 2(4.5)(3.5) + 2(4.5)(2.5) + 2(3.5)(2.5)
Surface Area = 2(15.75) + 2(11.25) + 2(8.75)
Surface Area = 31.5 + 22.5 + 17.5
Surface Area = 71.5 cm²
Therefore, the surface area of the shape is 71.5 square centimeters.