Question

Area of sector is 77cm²
and it's central
angle is 45° Find its radius​

Answer 1

Answer:

Step-by-step explanation:

Given that r=14 cm,area=77 cm  

2

 

Area of the sector =  

360  

∘

 

θ

​

×πr  

2

 

                         77=  

360  

∘

 

θ

​

×  

7

22

​

×14×14

                       ∴θ=  

22×14×14

77×360  

∘

×7

​

=45