Question

In a Triangle ABC, A=5x, B=7x and C=480 then find angles of triangle​

Answer 1

Step-by-step explanation:

sum of all angles of triangle = 180°

∠A = 5x ∠B = 7x ∠C = 48°

∠A + ∠B + ∠C = 180°

5x + 7x + 48 = 180

12x = 180 - 48

12x = 132

x = 132/12

x = 11

∠A = 5x = 5 × 11 = 55°

∠B = 7x = 7 × 11 = 77°

Hope you get your answer

Answer 2

Answer:

Given:-

∠B=76°

∠C=48°

∠A=?

As we know that, sum of all angles of a triangle is 180°.

∴∠A+∠B+∠C=180°

⇒∠A+76°+48°=180°

⇒∠A+124°=180°

⇒∠A=180°−124°

⇒∠A=56°

Step-by-step explanation:

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