Question

The three angles of a triangle are 3x, x + 10, and 2x - 40. Find the size of the smallest angle in the triangle?

Answer 1

note that in a triangle, the sum of the internal angles add up to 180 degrees.

Answer 2

the angles in a triangle add up to 180.
so 3x+x+10+2x-40=180
6x=210
x=210/6
x=35
The smallest angle in the triangle is
2x-40=2(35)-40=30

Answer 3

ha thank you