Circle section

An equilateral triangle with side 33 is an inscribed circle section whose center is in one of the triangle's vertices, and the arc touches the opposite side.


a) the length of the arc
b) the ratio between the circumference to the circle sector and the perimeter of the triangle

Correct answer:

x =  29.9277 cm
y =  0.3023

Step-by-step explanation:

a=33 cm r=23 a=23 3328.5788 cm A=60   x=r A° rad=r A° 180π =28.578838324886 60° 1803.1415926 =29.928=29.9277 cm
p=3 a=3 33=99 cm  y=px=9929.9277=0.3023

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Tips for related online calculators
See also our right triangle calculator.
Calculation of an equilateral triangle.
See also our trigonometric triangle calculator.

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