Answer:
Just 1 and 7 I believe since it is a prime number :)
Answer:
5.5 cm
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
Answer:
rectangle
Step-by-step explanation:
Polygons are named according to the number of sides and angles they have. The most familiar polygons are the triangle, the rectangle, and the square. A regular polygon is one that has equal sides. Polygons also have diagonals, which are segments that join two vertices and are not sides.
**CORRECTION** 21/2 because when you simplify it (dividing the top and the bottom by 2) you get 21/2. My first asnwer was a mixed number
