8/v-7=-5 add 7 to both sides
8/v=2 multiply both sides by v
8=2v divide both sides by 2
4=v
v=4
The polygon has 11 sides.
The measure each interior angle is 147.272°.
Solution:
The given shape is a regular polygon.
(a) Number of sides of the polygon = 11
The polygon has 11 sides.
(b) To find the measure of each interior angle:
Each interior angle of a regular polygon




The measure each interior angle is 147.272°.
Answer:

Step-by-step explanation:
The area of a rectangle can is defined as
where w is the width and l is the length. The width in this case is 12 and the length is 15. Also it doesn't really matter what order you put it in. This gives you an area of 
Centimeters, probably, which (for small things) isn't accurate.