the radius of a circle is 7cms the angle sub tended by an arc of the corcle at centre is 45 degress find the area of the sector About the author Amelia
Answer: Given, Radius = 7cm Theta = 45° We know that, ∴ Area = πr² = π(7)² = 49π We also know that, Area of sector = [tex]\frac{thetha}{360}[/tex] × πr² = [tex]\frac{45}{360}[/tex] × 49π = 19.2 cm² Hope it helps you^_^ Reply
Answer:
Given,
Radius = 7cm
Theta = 45°
We know that,
∴ Area = πr²
= π(7)²
= 49π
We also know that,
Area of sector = [tex]\frac{thetha}{360}[/tex] × πr²
= [tex]\frac{45}{360}[/tex] × 49π
= 19.2 cm²
Hope it helps you^_^