4.) Given AB I BC, AC = 28 ft, and LBCA = 12°, find the measure BC.
с
B
A
A.) BC = 5.82 ft
B.) BC = 16.21 ft
C.) BC = 21.58 ft
D.) BC = 27.39 ft

there are no answer choices

step-by-step explanation:

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )

the answer should be:

a. 3, 4, and 6

b. 18, 24, and 36

c. 4.8, 6.4, and 9.6

hope i

-lavira : )

answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8