Question

first angle of triangle is 40 and second angle 50 find the third angle
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Answer 1

Answer:

90°

Step-by-step explanation:

50°+40°+x°=180°

x°=180°-90°

=90°

Answer 2

180 degrees - (40 degrees + 50 degrees) (angle sum property)
180-(40+50)
180-90
90
Therefore the third angle will be 90 degrees
The triangle is a right angle