Question

Find all exterior angles if interior angles of triangle are 90°and 30°​

Answer 1

Answer:

120,150,90 are the exterior angles

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Answer 2

Answer:

90°, 150°, 120°

Step-by-step explanation:

Exterior Angle=180° - (Adjacent Interior Angle)

First Interior angle=90°

=>Its adjacent exterior angle=180°-90°=90°

Second Interior angle=30°

=>Its adjacent exterior angle=180°-30°=150°

Now, the third interior angle is 60°

∵Sum of all interior angles of a triangle=180°

=>Its adjacent exterior angle=180°-60°=120°

Therefore, all the exterior angles are 90°, 150°, 120°.