Question

∠ACD हा ΔABC चा बाह्यकोन आहे. ∠A व ∠B यांची मापे समान आहेत. जर m∠ACD = 140° तर ∠A व ∠B यांची मापे काढा.

Answer 1

Answer:

Step-by-step explanation:

Ang A + Ang B = 140

X+X = 140

2X = 140

X = 70

Answer 2

Answer :

∠A = 70°

∠B = 70°

∠C = 40°

Step by step explanation :

Hey Mate,

Given,

∠ACD = 140 °

∠A = ∠B

∠A + ∠B = 140 °

Suppose

∠A = X

∠B = X

Then,

∠A = ∠B = X

∠A + ∠B = 2X

So,

∠A + ∠B = 2X = 140 °

2X = 140 °

X = 70°

Some of the all three angle of triangle is 180°. So, ∠C = 180 - (70+70) = 40

So,

∠A = 70°

∠B = 70°

∠C = 40°