Question

180°-a=3a°
A
n angle of thrice it's supplement . The measure of the angle is ____
a)180°
b)105°
c)135°
d)150°
Choose the right option. please answer I will mark as brainliest .​

Answer 1

Answer:

180 - a= 3 a

180 = 4a

a = 180/4 = 45°

Answer 2

Answer:

135

Step-by-step explanation:

180°-a = 3a°

180°= 3a°+a

180°= 4a°

180°÷4 =a°

a°=45°

45°×3= 135°