Originally Posted by

**shadow6** *4. A carpenter designs a house that is 25m wide. The rafters holding the roof meet at an angle of 100°. One rafter is 23m long and its opposite angle is 60°. The carpenter wants to extend the rafters (by the same amount) past the house. How much should the rafters be extended past the house? Then find the length of the other rafter?*

Alright so I drew a diagram of this situation (not exactly sure how to attach it to this post), but all I managed to find was the angle 20 ° using AST.

A = 180*° - 100° - 60°*

A = 20*° (AST)*

I have absolutely no idea what to do next. Is my diagram even correct?