Question

The angles of a triangle are (3x), (2x - 7)º
U and (4x - 11). The value of x is:
(Railways, 2003)
(a) 18
(6) 20
(c) 22
(d) 30​

Answer 1

Answer:

a

Step-by-step explanation:

by using measure of all angles of triangle

Answer 2

Step-by-step explanation:

Sum of all angle's of a triangle is 180 degrees .

3x+2x-7+4x-11=180

9x-18=180

9x=198

x=33

3x=99

2x-7=59

4x-11=121