# Circle section

Equilateral triangle with side 33 is inscribed circle section whose center is in one of the vertices of the triangle and the arc touches the opposite side.

Calculate:

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

Result

x =  29.928 cm
y =  0.302

#### Solution:

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#### To solve this example are needed these knowledge from mathematics:

Pythagorean theorem is the base for the right triangle calculator. See also our trigonometric triangle calculator.

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