Name:
Entrance Ticket
For each problem below, identify the mistake that was made, then correct it.
1.
The mistake here is:
How to fix the mistake:
3. Find the m. ∠𝐸𝐵𝐶.
5x + 4 + x – 2 + 3x + 7 = 180
9x + 9 = 180
-9
-9
9x = 171
9
9
X = 19
m. ∠𝐸𝐵𝐶 = 5x + 4
= 5(19) + 4
= 99°
m. ∠𝐸𝐵𝐶 = 99°