Question

this shape is made up of one half - circle attached to an equilateral triangle with sides 17 inches. you can use 3.14 as an approximation for pi. approximate circumference of a circle with a diameter of 17 inches. the circumference of the whole circle is about inches.

Explanation:

Step1: Find the circumference of the semi - circle

The formula for the circumference of a full - circle is $C = \pi d$. For a semi - circle, the curved part's length is $\frac{1}{2}\pi d$. Here, the diameter $d = 17$ inches. So the length of the curved part of the semi - circle is $\frac{1}{2}\times3.14\times17= 26.69$ inches.

Step2: Find the perimeter of the shape

The perimeter of the given shape is the sum of the two 17 - inch sides of the triangle and the curved part of the semi - circle. So $P=17 + 17+26.69 = 60.69$ inches. But we want the circumference of the whole circle. Since $C=\pi d$ and $d = 17$ inches, $C = 3.14\times17=53.38$ inches.

Answer:

53.38