The ratio of boys to girls in a class is 3:5. There are 40 students in the class. How many students are girls?

Wow. that is a really cool question.

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .