MEDAL AND FAN

The area of the base of a rectangular prism is 25 square feet. Each side of the base is 5 feet, and the height of the prism is 7 feet.
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1. What is the surface area of the prism above?

Question

MEDAL AND FAN

The area of the base of a rectangular prism is 25 square feet. Each side of the base is 5 feet, and the height of the prism is 7 feet.
Captionless Image
1. What is the surface area of the prism above?

hexiflexidexi · Answer

The surface area of the prism can be calculated by the base area+4 times area of side triangles, right? We know that the base area is 25 sqft, and that the area formula for a triangle is (base times height)/2, right? We know the base (5ft), so we now need to use the pythagoras theorem for the lateral height (the length marked with a "?")
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hexiflexidexi · Answer

Do you know how to use the Pyth. Them to find the slant height? :)