Question

What is the perimeter of the figure to the nearest tenth of a millimeter?











A.
9.4 millimeters







B.

12.0 millimeters








C.
21.4 millimeters







D.
30.8 millimeters
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Answer 1

B that's what I think

Answer 2

@Data_LG2 help me I think its B

Answer 3

perimeter is the measurement of the sum of the lengths.

first, calculate the circumference of the curve. C=2 pi r or pi d
d=6, then divide it by 2 because the circle is half.

then the sides of the rectangle at the bottom. 6 + 3 +3

perimeter: ((pi x 6) / 2) + (6+3+3) = ???

Answer 4

9.42477796076938x+12

Answer 5

hmm.. let's do it one by one. pi is approx 3.14
so tell me what's 3.14 times 6 ?

Answer 6

18.64

Answer 7

yeah okay, i got 18.84 but that's alright.

now divide that by 2

Answer 8

9.42

Answer 9

so my answer is A

Answer 10

not done yet. now add the perimeter of the rectangle.

from 9.42 add 6+3+3

Answer 11

21.42

Answer 12

yep :)

Answer 13

that's my answer so C

Answer 14

:)