Question

Two angels of triangle are 45 dree and 55dree find the measure of third angle​

Answer 1

Answer:

80°

Step-by-step explanation:

according to the angle sum property

sum of all the three angles of a triangle=180°

⇒45°+55°+x=180°

x=180°-100°

x=80°

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Answer 2

Answer:

80°

Step-by-step explanation:

Let 1st angle be 45

Let 2nd angle be 55

Let 3rd angle be x

Sollution:

Using Angle sum property ⇒ 45 + 55 + x = 180

                                                100 +x  = 180

                                                 x = 180 - 100

                                                x = 80

Therefore the third angle is 80°

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