Question

Two angles of a triangle are of measures 150 and 30 find the measure of the third angle
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Answer 1

Answer:

Given two angles of a triangle are of measures 150° and 30°

Given two angles of a triangle are of measures 150° and 30° Let the required third angle be x

We know that sum of all the angles of a triangle

= 180°

105° + 30° + x = 180°

135° + x = 180°

x = 180° – 135°

x = 45°

Therefore the third angle is 45°

Answer 2

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Two angles = 150° and 30°

We know that angle sum property(sum of all angles) of a triangle is 180° and the sum is already 180°. So this can't be a triangle and hence 3rd angle can't be found.