Question

find all angles of abc​

Answer 1

Step-by-step explanation:

Given -

• ∠ACD = 110°
• ∠A and ∠B are in the ratio 7:4

To Find -

• All angles of ΔABC

As we know that :-

• The sum of the measures of adjacent angles that form a straight line is equal to 180°
• The sum of interior angles of triangle is equal to 180°

Now,

Let x be the angle

Then,

∠A = 7x and ∠B = 4x

And

∠ACD + ∠ACB = 180°

» 110° + ∠ACB = 180°

» ∠ACB = 180° - 110°

• » ∠ACB = 70°

Now,

In ΔABC

» 7x + 4x + 70° = 180°

» 11x = 180° - 70°

» 11x = 110°

• » x = 10°

Hence,

The angles of ΔABC is

∠A = 7x = 7×10 = 70°

∠B = 4x = 4×10 = 40°

∠C = 70°

Answer 2

Tricky the star has given .....

n thanks tricky .....