What is the perimiter of this 1/4 circle

A. 7.85in
B. 12.9in
C. 17.9in
D. 31.4in

Explanation:

A full circle of radius 5 inches would have a perimeter or circumference of...

C = 2*pi*r

C = 2*3.14*5

C = 31.4

This value is approximate because pi = 3.14 is approximate.

The distance around a full circle with radius 5 inches is roughly 31.4 inches, but we only want a quarter of this. Therefore, the distance around the curved portion of the quarter circle is roughly C/4 = (31.4)/4 = 7.85 inches.

Choice A would be the answer if your teacher only cared about the curved portion. However, don't forget about the straight line portions that also make up the quarter circle. Choice A might have been put there as a trick answer.

We'll add on the two copies of the radius 5 inches to get a total perimeter of 5+5+7.85 = 10+7.85 = 17.85 = 17.9 inches, which points to choice C as the answer.

Side note:

If we used a more accurate version of pi, say the version stored in your calculator, then the perimeter is roughly

5+5+(2*pi*5)/4 = 17.8539816339744

Rounding to the nearest tenth leads to the same answer of 17.9 inches

black/brown

step-by-step explanation:

well, you see here, jamal was born to 2 parents, his mother who he lives with and his father who left at a young age and who happens to be younger than him. he stole cookies because he has to steal food due to the fact that he spends his government poverty checks on pot and women.

the answer is 62.8 cubic units