We have to know the angle that is not labelled. (lets call it y)
9x + y= 180
and the sum of the angles of a triangle is 180
5x + (9+x) + y=180
2 simultaneous equations
Answer:
-10 degrees
Step-by-step explanation:
24+8=32
32-(7 x 6)= 32-42=-10
P/4 p=12 just plug in 12 for p
12/4 4*3=12 12/4=3
Hope this helps have a nice nite
7 goes into 11 one time, which leaves you with 1 4/7.
Answer:
SA = 2520 ft^2
Step-by-step explanation:
a = 21ft
b = 29ft
c = 20ft
h = 30ft
SA = 2
+ (a+b+c)h
= s(s﹣a)(s﹣b)(s﹣c)
s = 
SA= ah + bh + ch + 
SA= (21 * 30) + (29 * 30) + (20 * 30) +
SA = 2520 ft^2
