Part 1 took 30 minutes and part 2 took 30 minutes
Step-by-step explanation:
you need to find the area and add them together
Answer: ∠A = 70°
because ABC is an isosceles triangle and AB = AC
=> ∠B = ∠C = 55°
=> ∠A = 180-(∠B + ∠C) = 180° - 55°.2 = 70°
