3a) Answer: 84 degrees
Step-by-step explanation:
3x + 2(x+20)= 180 (total sum of angles in a triangle is 180 degrees)
5x+40 = 180
5x = 140
x= 28
3x= 28 x 3
= 84
B they only have one pair of parallel sides. The top and bottom
Answer:
c.
Step-by-step explanation:
Idk I’m not that very smart