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a triangle has two angles that measure 18.6 degrees and 113.4 degrees respectively. what is the measure of the third angle?

Respuesta :

hermionegranger59

Sum of all angles of a triangle = 180°

Let the third angle be x.

So, 18.6° + 113.4° + x = 180°

=> 132° + x = 180°

=> x = 180° - 132°

=> x = 48°

So, the third angle is 48°.

ADVENTUROUSBOY

3rd Δ = 48°

Step-by-step explanation:

sum of all Δangle of a triangle = 180°

so, let 3rd angle be x

18.6° + 113.4° + x = 180°

132° + x = 180°

x = 180° - 132°

x = 48°

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