Date Name
8.2 Puzzle Time
What Is The Building In Your City That Has The
Most Stories?
Write the letter of each answer in the box containing the exercise number.
Find the perimeter of the figure.
Answers
R. 22.56
B. 40-
1.
2.
12
1. 30.28
22
p=22
5
Y. 33.42
5
13
15
18+22= 40
R. 82.24
3
L. 22
473-12 103
A. 74.82
3.
9
b
9
to 6.3,14=18,84=(
1/2 € = 9.2 +979+6=
33.2
6.
7.
5.
16
8
8
10
24
10
1
2
6
5
7
3
4
L
B
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Here's link to the

cutt.ly/nz6VGda

x = central angle apc = measure of minor arc ac

the two angles x and 30 add to 180, so x+30 = 180 and x = 180-30 = 150. the measure of minor arc ac is 150 degrees.

what we need to do from here is find the circumference and then multiply it by x/360 since there are 360 degrees in a circle. in this case, x = 150, so x/360 = 150/360 = 15/36 = 5/12. the shortest distance along the curve from a to c is 5/12 of the distance around the entire circle (aka circumference)

c = circumference

c = pi*d

c = pi*24

c = 24pi

now multiply this by 5/12 to get

distance along minor arc ac = (5/12)*(circumference)

distance along minor arc ac = (5/12)*(24pi)

distance along minor arc ac = 10pi

the formula you can use is

l = (x/360)*pi*d

with

l = length of minor arc

x = central angle

d = diameter

which essentially is the steps we took though a bit differently.

-2 is the right