What is the ratio of radius of circumcircle to the radius of incircle of an equilateral triangle?1. Fill in the boxes.
a) sin 20° = cos
__°
b) tan 30° tan __° = 1
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We know that the ratio of circumradius & inradius of an equilateral triangle is 2:1. The ratio of circumference of circumcircle & circumference of incircle will be = 2∏R/2∏r =(R/r) = 2:1
A. 70°
B. 60°
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