Question

The area of a sector of radius 10 cm is given as 25 cm2. Find the angle of the sector, giving your answer correct to one decimal place

Answer 1

Answer:

Let central angle be t

$area \: of \: sector \: = \frac{1}{360} \pi \: {r}^{2} t \\ 25 = \frac{1}{360} \times \frac{22}{7} \times 10 \times 10 \times t \\ t = \frac{25 \times 7 \times 360}{2200} \\ t = 12.27 \: degrees \: approx$

Answer 2

Answer:

this is correct...........................