Answer:
n = 28 degree
Step-by-step explanation:
2n + 17 + 2n - 5 + 2n = 180 degree (sum of interior angles of a triangle)
6n +12 = 180
6n = 180 - 12
n = 168/6
n = 28 degree
3x2+9x-54
6+9x-54
6-54+9x
-48+9x
Answer:
A: ∠CED is a right angle.
B: ∠CEA is a right angle.
D: m∠CEB = m∠BEA
E: m∠DEB = 135°
Step-by-step explanation:
EDGE 2020
Seventy-two thousand five hundred
First u need to read the problem second annalyze 3 create ecuation 4 solve 5 write it in words