Answer:
400cm²
Step-by-step explanation:
Total surface area of a prism includes the area of the top and bottom triangle sides of the prism, plus the area of all 3 rectangular sides.
Base & Bottom triangle area: 2 x [(8 x 15)/2] = 120cm²
Side triangle area: 17 x 7 + 8 x 7 + 15 x 7 = 280cm²
Total surface area = 280 + 120 = 400cm²
The diameter of the circle is needed. But to solve, you would simply multiply the diameter of the circle by pi (3.14).
She has been gone 52 min.
57 - 5 = 52
Answer:
answer is B
Step-by-step explanation:
