Find x in the figure

A triangle has 2 angles. 35 and 40.

y is unknown
x is unknown

Determine the value of x if the angle has to add to 180°

1 answer

In a triangle, the total sum of all angles is 180 degrees.

So, if you have 2 angles of 35 and 40 degrees, then you can find the third angle by subtracting the given angles from 180.

180 - 35 - 40 = 105 degrees.

So, x = 105 degrees.