Answer:
1. hexagon
2. 4
4. H
5. 6
6-8. count how many sides there are in the shape and multiply the given area to the number of sides you counted. for 6 it's a pentagon. 5 sides. Multiply 8.5 X 5. use calculator for the rest of that section if needed
9-11. they are equilateral triangles. Search up the formula and plug in and solve
Step-by-step explanation:
If you look at a unit circle (or you have one memorized, which I would strongly suggest) (√2/2,√2/2) is located at the radian value

, which is 45 degrees
Answer:
Therefore Area of Rectangle is 50 unit².
Step-by-step explanation:
Given:
Let the vertices of a Rectangle be
A ( -1 , 7)
B ( 4 , -3)
C ( 0 , -5)
D ( -5 ,5)
To Find:
Area of Rectangle ABCD = ?
Solution:
First we will find the Length and Width of Rectangle by Distance Formula ,

Substituting the values we get


Similarly for BC we will have,

Now

Now Area of Rectangle is given by

Substituting the values we get

Therefore Area of Rectangle is 50 unit².