PLS Help! What is the best approximation for the perimeter of a semicircle with a diameter of 12cm? Use 3.14 to approximation pi

Question

Step2247 [10]

3 years ago

14

PLS Help! What is the best approximation for the perimeter of a semicircle with a diameter of 12cm? Use 3.14 to approximation pi

.
A. 18.84cm
B. 30.84cm
C. 61.68cm
D. 75.36cm
PlS HELP!<3

Mathematics

2 answers:

In-s [12.5K] · Answer 1 · 2022-08-16T18:20:48+03:00

In-s [12.5K]3 years ago

3 0

Answer:

A

Step-by-step explanation:

scoray [572] · Answer 2 · 2022-08-16T19:40:37+03:00

The answer is B because you have to do 12 times 3.14 to get the circumference. In order to find the perimeter, you must do the diameter times pi plus the diameter. Since it’s a semi circle you also have to divide by 2. So 12 times 3.14 divided by 2 plus 12 is 30.84 cm which is B.