Question

find the third angle of a triangle whose two other angles are 40 degree and 60 degree​

Answer 1

Answer:

Triangle has three angles. The sum of all the internal angles of a triangle is 180. Let the third angle be x. Therefore, the third angle is 80°.

Step-by-step explanation:

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Answer 2

Answer:

80°

Step-by-step explanation:

Let the third angle be x

A/Q

x+40°+60°=180°[Angle sum property of a triangle]

x+100°=180°

x=180°-100°

x=80°