Question

Find the perimeter of the sector with radius 10.5cm and sector angle 60

Answer 1

Answer:

The answer is 32 cm

Step-by-step explanation:

Answer 2

Perimeter of the sector OAB,

$\longrightarrow$ $\sf{OA + OB + arc \: AB \: = 10.5 + 10.5 + \frac{\theta}{360} \times 2\pi \: r}$

$\longrightarrow$ $\sf{(21 + \frac{60}{360} \times 2 \times \frac{22}{7} \times 10.5)cm}$

$\longrightarrow$ $\sf{(21+11)cm}$

$\longrightarrow$${\boxed{\sf{32cm}}}$