All the angles inside a triangle add up to 180°.
(2x + 15) + (5x + 5) + x = 180
8x + 20 = 180
8x = 180 - 20
8x = 160
x = 160/8
x = 20
the question is asking what angle B is,
B = 2(20) + 15
B = 40 + 15
B = 55°
Step-by-step explanation:
-1/3 the answer is negative one third
The formula is: a^2 h/3
the answer is about 0.49
We will owes 0 dollars cause 164 multiply by 12 = 1968