Free worksheet guide to follow along with the video:

Solving for x in angles. The sum of the given 4 interior angles = 108°+. A sin (a) = b sin (b) = c sin (c) when there is an angle. Two lines are said to be parallel when they have the same slop.

150 + 2x = 180;. A + b + c = 180. This geometry video tutorial provides a basic introduction into the exterior angle theorem for triangles.

The math tutor can help you get an a on your homework or ace your next test. The equation calculator allows you to take a simple or complex equation. Where a , b, and c are the internal angles of a triangle.

There's a straight line, and we see 150 o and 2x are supplementary angles. The angles always add to 180°: A + b + c = 180°.

The angles represented by 5x and 15 are on the same side of the transversal, so we know that the sum of those two angles will add up to 180 degrees. The steps to solve for x: When you know two angles you can find the third.

👉 learn how to solve for an unknown variable using parallel lines and a transversal theorems. Set the expressions labeling the angles equal to each other. Our right triangle side and angle calculator displays missing sides and angles!