Question

please show processs​

Answer 1

Answer:

Step-by-step explanation:

Given that,

In a ΔABC , ∠A = 3x, ∠B = 5x and ∠C = 8x + 4°.

We know that, the sum of the three angles of a triangle is 180°.

∴ ∠A + ∠B + ∠C = 180°

⇒ 3x + 5x + 8x + 4° = 180°

⇒ 16x + 4° = 180°

⇒ 16x = 180°- 4°

⇒ 16x = 176°

⇒ x = 176° / 16

⇒ x = 11°

∴ The three angles of a ΔABC are

3x = 3 × 11° = 33°,

5x = 5 × 11° = 55° , and

8x + 4°= 8 × 11° + 4° = 88° + 4° = 92° is the answer.