Question

find the ratio of the radius of two circle at the centres of which two equal arcs subtend angle of 30° degree and 70°

Answer 1

Answer:

Step-by-step explanation:

Length of arc=Radius*Angle subtended by arc at the centre

Here,

R1*30=R2*70 (Since,arcs are equal)

(R1/R2)=7/3, hope you understood

Answer 2

Answer:

hey watch the above pic for ur answer .