Answer:
we have only two or three acute angles in a triangle. so ima say at least 1
Step-by-step explanation:
91in in feet 7.5ft
m<B = 60
Exterior angle thm:
3x + 4x = 10x - 45
7x = 10x - 45
7x - 10x = -45
-3x = -45
x = 15
<B:
4x
4(15)
60
x= -2 hope this help do you need to show your steps?