# geometry

posted by .

bulletin board border

please help me. i would like to make a geometry bulletin board that has a a border of circles, triangles and squares. i know that 20 shapes will fit across the board and that 12 shapes will fit down the board . if i start in the top left hand corner with a circle, followed by a triangles, then a square, and repeat this pattern all around the board, how many of each shape will i pattern all around the board, how many of each shape will i need? explain your solution using words and pictures.

• geometry -

sorry, no pictures here.

If 20 fit across top and bottom, that's 40.
The sides hold 12, but top and bottom are already taken at the corners, leaving room for 10 more along the sides. That makes 20 more for both sides.

So, you will have 60 pictures in all.
Since you have 3 different pictures, I guess you can figure how many of each you will need . . .

you could also have figured this out by spending 5 minutes drawing the border . . .

• geometry -

Three letters are chosen at random from the letters P, A, N, S, O, L. What is the size of the sample space of this experiment? Assume that the order of the letters matters. That is, PAN is different from APN.

## Similar Questions

1. ### Math

Penny has been hired to paint 5 bulletin boards at her school. To calculate the amount of surface she needs to paint, she multiplies the length of one side of one bulletin board by itself and then multiplies the product by 5. Based …
2. ### math

Myra's bulletin board has a width of 60 inches. When she originally decorated it she needed 192 inches of border material. How many inches high is the bulletin board?
3. ### math

Myra's bulletin board has a length of 60 inches across the bottom. When she originally decorated it she used 192 inches of border material. What is the width (height) of the bulletin board?
4. ### math

Myra's bulletin board has a length of 60 inches across the bottom. When she originally decorated it she used 192 inches of border material. What is the width (height) of the bulletin board?
5. ### math

Myra's bulletin board has a length of 60 inches across the bottom. When she originally decorated it she used 192 inches of border material. What is the width (height) of the bulletin board?
6. ### Math

A Classroom bulletin board is 7 feet by 4 feet. If there is a picture of a student every 6 inches along the edge, including one in each corner, how many pictures are on the bulletin board?
7. ### Physics

You are holding a bulletin board weighing 7.01 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. …
8. ### math

A classroom bulletin board is 7ft by 4ft,if there is a picure of a student every 6 inches along the edge including 1 in each corner,how many pictures are on the bulletin board?
9. ### math

the bulletin board in Shain's classroom is 3 1/4 feet by 4 1/2 feet. what is the area of the bulletin board?
10. ### English

What is the difference between 'post' and 'upload'?

More Similar Questions