Question

If the diameter of the semicircle is 1.7 centimeters, what is the circumference of the semicircle? 5.338 cm 10.676 cm 2.669 cm 1.3345 cm

Answer 1

2.669 is the answer

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Answer 2

2.669 cm

Explanation:

The circumference of a circle is the distance around the circle and is found using the formula C = πd. For a semi circle, halve the circumference.

For the semi-circle with diameter of 1.7 cm, substitute d = 1.7 into the formula C = π(1.7) = 5.338.

Divide this in two since a semicircle is half a circle. 5.338/2 = 2.669.