in triangle abc angle C =Angle B+9°,angle B(3x-2)°,angle A=x° find angle A,B,C of triangle ABC
Answers
Answered by
1
Answer:
∠A = 25°
∠B = 73°
∠C = 82°
Step-by-step explanation:
∠C = ∠B + 9°
∠B = 3x - 2°
∠A = x°
∠A + ∠B + ∠C = 180° (Angle Sum property of Triangle)
Putting values
x + 3x - 2° +3x - 2° + 9° = 180°
7x + 5° = 180°
7x = 175°
x = 175°/7
x = 25°
SO , ∠A = 25°
∠B = 3x - 2° =3(25)° - 2° = 75 -2 = 73°
∠C= B + 9° = 73° + 9° = 82°
Similar questions