Question

Find the area and circumference of a circle that has a diameter of 17mm

Answer 1

Answer:

Area A = 72.25$\pi$ sq. units

Circumference C = 17$\pi$

Step-by-step explanation:

The diameter, d of the circle is given to be 17mm.

Since, 2r = d, where r is the radius r = $\frac{17}{2}$ mm.

Area A of the circle is given by $\pi r^2$ sq. units.

Therefore, A = $\pi \times (\frac{17}{2}) ^2$= 72.25 sq.mm.

Also, Circumference, C = $2 \pi r$ units.

Therefore, C = $2 \times \pi \times \frac{17}{2}$ = 17$\pi$ units.