Question

find the value of x in a triangle if-
A= 56 degree, B= 68 degree, C= (3x-4) degree

Answer 1

Answer: ∠A+∠B+∠C= 180°

x+3x+y=180°

4x+y=180°

operating 3×4x+y-3y-5x=3×180-30°

12x+5x=540°-30°

17x=510°

x=30°

∠A=30

∴∠B=3x=3×30=90

HENCE IT IS A RIGHT ANGLE

Step-by-step explanation:

Answer 2

answer

40

step by step explanation

3x-4=56 +68

3x-4=124

3x= 124-4

3x= 120

x =120/3

40