Question

find x in the following​

Answer 1

Answer:

3x+16+45+68= 180 (Angle sum property)

Therefore.,

3x = 180-129

3x= 51

x = 51/3

= 17 (answer)

Answer 2

$\huge\tt\colorbox{orange}{Answer}$

P = 45°

Q = (3x + 16)°

R = 68°

Accg to angle sum property of triangles, Sum of the all angles of triangle is 180°

$45 + 3x + 16 + 68 = 180 \\ 129 + 3x = 180 \\ 3x = 180 - 129 \\ 3x = 51 \\ x = \frac{51}{3} \\ x = 17$