To find the surface area of a right rectangular prism, we use the formula:
2lw + 2lh + 2wh
Plugging in the given measurements:
2(4.5)(3.5) + 2(4.5)(2.5) + 2(3.5)(2.5)
= 2(15.75) + 2(11.25) + 2(8.75)
= 31.5 + 22.5 + 17.5
= 71.5 cm^2
Therefore, the surface area of the shape is 71.5 cm^2, so the correct answer is:
a. 71.5 cm^2
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.
a. 71.5 cm^2
b. 10.5 cm^2
c. 35.75 cm^2
d. 63 cm^2
1 answer