To find the surface area of a rectangular pyramid, you need to find the area of the base and the area of each of the four triangular faces.
First, calculate the area of the base:
Area of base = length x width
Area of base = 8 cm x 4 cm
Area of base = 32 cm²
Next, calculate the area of each triangular face:
Area of triangular face = 0.5 x base x height
Area of triangular face = 0.5 x 8 cm x 5 cm
Area of triangular face = 20 cm²
Now, calculate the total surface area by summing the area of the base and the area of the four triangular faces:
Total surface area = 32 cm² + 4(20 cm²)
Total surface area = 32 cm² + 80 cm²
Total surface area = 112 cm²
Therefore, the surface area of the rectangular pyramid is 112 cm².
Find the surface area of a rectangular pyramid with these measurements: l
= 8 cm, w
= 4 cm, and h
= 2 cm. Express your answer as a decimal rounded to the nearest hundredth.(1 point)
1 answer