I dont know if you know this, but there are 3 different 3's. So how can we figure out the question if we don't know which one is underlined?
Hey the image doesn't appear for me
Answer:
4( b+3) + 2 (b + 5)
4b+12+2b+10
6b+22
Step-by-step explanation:
First you need to solve for angle F then you can use 1/2acSinB. If you haven't done this you can also use the Pythagoras theorem and solve for the unknown side once you do that you can just use 1/2 b*h
Given a point in coordinates form

, one can compute the cartesian form like this:

We have:

We get the cartesian form then: