Question

C=15.7 ft The formula for the circumference of a circle is with the given circumference use 3.14 for π and round to the nearest tenth of a unit if necessary

Answer 1

Radius of circle is 2.5 feet

Diameter of circle is 5 feet

Solution:

Given that,

Circumference of circle = 15.7 feet

The formula for the circumference of a circle is:

$C = 2 \times \pi \times r$

Where, "r" is the radius of circle

Given that,

C = 15.7 feet

Therefore,

$15.7 = 2 \times 3.14 \times r\\\\6.28r = 15.7\\\\r = \frac{15.7}{6.28}\\\\r = 2.5$

Thus radius of circle is 2.5 feet

Also,

Diameter = 2( radius )

Diameter = 2 (2.5) = 5

Thus diameter of circle is 5 feet