Question

Find the value of the unknown angle

Answer 1

Answer:

7x + 5x = 180° (linear pair)

12x=180°

x=180/12

x= 15°

7(15)=105°

5(15)=75°

the angles are 105° and 75°

Step-by-step explanation:

hope this helps you

Answer 2

Answer:

7x+5x = 180°(as they are linear pair)

Step-by-step explanation:

• 7x+5x =180°
• 12x =180°
• x = 180/12
• x=15
• hence,
• 7x = 7× 15= 105
• 5x = 5× 15= 75
• 105+75 = 180°

hope it helps!!