Question

Find a,if b = 2a and c=3a

Answer 1

according to the question 180 degree- 2 + 3 a is equal to a hence the answer is 5 a is equal to 180 and a is equal to 180 by 5 is equal to or 35 so answer is 35
Please mark it as brainist

Answer 2

Hey friend,

Given:
b= 2a
c= 3a

To find:
Find the value of "a"

Solution:

a+b+c=180 deg [straight angle]
a+2a+3a= 180 deg [substitute the given values]
6a= 180 deg
a= 180/6 [when the multiplication operation is swifted to the opposite side it changes into division]

Therefore,
a= 30 [30×6=180]

Now we got the value of "a" (i.e) a= 30 deg.
To find the values of b and c, Substitute the value of "a" in the given values [b= 2a & c= 3a]

2a= 2×30=60
3a= 3× 30=90

Thus the angles are 30deg, 60deg, and 90deg.

Hope my answer helps you :)

Regards,
Shobana
^_^