Question

QID : 163 ­ Find measure of central angle of the sector whose perimeter is 25 cm and radius of the circle is 7 cm?


Options:

1) 45°

2) 22.5°

3) 135°

4) 90°
explain karna​

Answer 1

Answer:

Central angle of the sector is 204.62 degree

Step-by-step explanation:

Arc length of arc subtended is given by

$S=r\theta$

where r is radius and θ is central angle in radius

$\theta=\frac{180}{\pi } \frac{S}{r} \\\\\theta=\frac{180}{\pi }\times \frac{25}{7}\\\\\theta=204.62^0$

answer is not matching the given options. there must be some thing wrong in given data