Question

7. Sum of three angles xº,
(x+50). (x+70)° is 180°, find the
angles.
a. 20° 70°, 90°
b. 70°,209,90
c. 90°,70°,20
d. 20° 90°,70°​

Answer 1

Answer:

x+ x+50+x+70 = 180

3x + 120 = 180

3x= 180- 120

3x= 60

x=60/3

x= 20

Answer 2

Answer:

A. 20°,70°,90°

Step-by-step explanation:

THEREFORE, ACCORDING TO THE QUESTION

x°+ (x + 50)° + (x + 70)° = 180°

= > 3x° + 120°= 180°

= > 3x° = 180° - 120°

= > 3x° = 60°

= > x = 60/3°

= > x = 20°

So, one of the angles is 20°,

another angle is (x+50)° that is (20+50)°=70°

and the third angle is (x+70)° that is (20+70)°= 90°

SO OPTION A IS CORRECT ANSWER.

HOPE IT HELPS. THANK YOU.