X=80°
A triangle’s angle measurements always add up to 180°. So 180-70-30=80
(30 0Z less then) is your answer :)
I believe it would be three angles and one angle shown!
X2 - 2x + 9x - 18
X2 + 7x - 18
Answer:
It is important because it allows you to calculate the surface area of a trapezoidal prism
Step-by-step explanation:
