What are the measures of Angles a, b, and c? Show your work and explain your answers.

∠a = 40°

∠c = 115°

∠b = 50°

Step-by-step explanation:

Given ∠a and 40° are vertical opposite angles

So,

∠a = 40°

∠65° and ∠c are stands on straight line

So,

∠65° + ∠c  = 180°

∠c = 115°

∠a + ∠b + 90° = 180°

40°  + ∠b + 90° = 180°

∠b = 50°

the forst and 3rd

step-by-step explanation:

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