00:02
Here in this problem, here is a triangle and all three angles are given here.
00:09
We have to find out the value of x.
00:12
Now, we know some of, some of three angles, some of three angles of a triangle is 180 degree.
00:27
So we can write that 46 degree means this angle plus 2x plus 20 degree, this angle, plus the third angle, that is 72 degree, this one, 72 degree, and the sum is 180 degree.
00:53
Now if we solve this one, we'll find the value of x.
00:58
So here we get 2x and then 46 plus 20 plus 72 degree and here is 180 degree.
01:11
So therefore 2x and if we add this 346 plus 20 plus 72 get 138 degree that is equal to 180 degree...