Answer:
27°
Step-by-step explanation:
Step 1:
∠A + ∠C + ∠D = 180° Sum of a Δ
Step 2:
3x - 10 + 45 + 2x + 10 = 180 Input all values
Step 3:
5x + 45° = 180° Combine Like Terms
Step 4:
5x = 135° Subtract 45° on both sides
Step 5:
x = 135° ÷ 5 Divide
Answer:
x = 27°
Hope This Helps :)
