Question

19. Find the Surface Area of the following figure.a. 400 in?b. 100 in?C. 1256.64 in?d. 4188.79 in?(The (?) are supposed to be a squared symbol

Answer 1

`\begin{gathered} \text{Formula for the Surface Area of the Sphere} \\ A=4\pi r^2,\text{ wh}ere\text{ r is the radius} \\ \text{ The given on your problem is a sphere with a radius of 10 inches.} \\ \text{Therefore, we substitute r with 10 inch} \\ A=4\pi r^2 \\ A=4\pi(10in)^2 \\ A=4\cdot3.14159\cdot100in^2 \\ A=1256.636in^2\text{ rounded to 1256.64 in\textasciicircum{}2} \end{gathered}`