Question

∠1, ∠2 & ∠3 are the interior angles of a triangle and ∠4 is its exterior angle. If ∠2 = 45° & ∠4 = 87° find ∠3. ( ∠2 & ∠3 are interior opposite angles )

Answer 1

Answer:

So here is your answer.

Step-by-step explanation:

Measure of angle 2 = 45 degree

Measure of exterior angle= 87 degree

let the angle 3 = x degree

According to question :

45 + x = 87

x = 87-45

x = 42

So , the measure of angle 3 = 42 degree.

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