Question

If two angles of a triangle are given as 27 degree and 85 degree. Find the third angle. chose the correct one. a) 58 degree ( b) 68 degree ( c) 78 degree (d) 45 degree. pls tell me which is the correct one friends i need your help.​

Answer 1

Answer:

(b) 68 degree

Step-by-step explanation:

Let the angle be x°

∴ x° + 27° + 85° = 180°

x° = 180° - 112°

x° = 68

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Answer 2

Given :-

If two angles of a triangle are given as 27 degree and 85 degree. Find the third angle.

To Find :-

Third angle

Solution :-

Let the third angle be x

Sum of all angles in a triangle is 180°

∠A + ∠B + ∠C = 180°

27 + 85 + x = 180

112 + x = 180

x = 180 - 112

x = 68°

Option B is correct!