3 years ago

I need help Please. the question in photo

Mathematics

1 answer:

Crank3 years ago

5 0

Answer:

Step-by-step explanation:

Since Δ ABC is isosceles , then AB = AC and the base angles are congruent.

∠ ACB = $\frac{180-50}{2}$ = $\frac{130}{2}$ = 65°

∠ ACB and ∠ BCE are adjacent angles and are supplementary, thus

∠ BCE = 180° - 65° = 115° → C

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