Before you can use the reason CPCTC, you need to show that two figures which usually are triangles to be congruent. After showing such, you can then say Corresponding parts of the two congruent figures are also congruent to each other.
Answer:
25°
Step-by-step explanation:
Step 1:
3x + x + 20° + 60° = 180° Sum of a Δ
Step 2:
4x + 80° = 180° Combine Like Terms
Step 3:
4x = 100° Subtract 80° on both sides
Step 4:
x = 100° ÷ 4 Divide
Answer:
x = 25°
Hope This Helps :)
Answer:
That sucks
Step-by-step explanation:
D.18157 units3 since 11^2 x 15 = 18157