Question

solve the following ​

Answer 1

Answer:

5x - 12 + 2x = 180

7x = 180+12

7x = 192

x = 192/7

x = 26

/_ABC => 5x-12

=> 5×26 - 12

=>118

/_CBD => 2x

=> 52

Answer 2

$\bigstar$Answer:

• 125.5° and 55°

$\bigstar$ Given:

• 5x - 12° and 2x lie on a straight line

$\bigstar$To find:

• The value of x

$\bigstar$ Solution:

$\because$ We know that the sum of angles lieing on a straight line is 180°,

$\implies$ 5x - 12° + 2x = 180°

$\implies$ 7x - 12° = 180°

$\implies$ 7x = 192°

$\implies$ x = 27.5

So the angles are:

• 5x - 12°

= 125.5°

• 2x

= 55°