Question

Please help me! I really need this done!!

Answer 1

For 4&5. It's 180 - the angles they give then you get the answer
For 8&9 it's 360 minus the angles they give you get the answer
4 sides =360

Answer 2

A) For triangles, the sum of all the angles is equal to 180 degrees.
b) A quick Google search on "types of quadrilaterals" should be sufficient!
c) For quadrilaterals, the sum of all angles is equal to 360 degrees.

I'm sure you can figure out the answers from there.