Question

Which explanation justifies how the area of a sector of a circle is derived?.

Answer 1

Step-by-step explanation:

We know the area of a circle is

$\pi {r}^{2}$

That is when the cricle is 360 degrees full, so another formula is

$\frac{360}{360} \pi {r}^{2}$

If we the find the area of the sector with angle x, then that formula will be

$\frac{x}{360} {\pi}r^{2}$