Question

Pove that the sum the angle of a triangles is 180

Answer 1

Answer:

The sum of the all sides of a triange is 180°. For example Let a triange (As an attachment) ΔABC, where angle A be 75°

and angle B be 20°

Let try to find angle C

by Angle Sum Property {ASP}

ΔABC + ΔBCA + ΔCAB = 180°

= 20° + x + 75° = 180°

= x + 95° = 180°

= x = 180° + 95°

= x = 85°

Hence, angle C is 85°

Let's cross check [That is there sum is 180°]

So, A + B + C

75° + 20° + 85° = 180°

Hence, the sum of all sides is 180° is proved true.

Hope it helps

Answer 2

Answer:

see this attachment mate.....