Show your work.
Laura made the following pictures with circles and triangles.
She started making a chart to show the number of circles and triangles in each picture.
Sheet # 364
Name_________________________Date:_____________
Show your work.
Laura made the following pictures with circles and triangles.
She started making a chart to show the number of circles and triangles in each picture.
| Picture Number |
Number of
Circles |
Number of
Triangles |
|
1
|
3
|
1
|
|
2
|
5
|
2
|
|
3
|
.
|
. |
|
4
|
. | . |
a) Complete Laura's chart and look for a pattern.
b) Write a mathematics sentence to show the relationship between the number of circles and the number of triangles.
c) How many circles would you need in a picture with 12 triangles?
Answer for sheet # 364
a)
| Picture Number |
Number of
Circles |
Number of
Triangles |
|
1
|
3
|
1
|
|
2
|
5
|
2
|
|
3
|
7
|
3
|
|
4
|
9
|
4
|
b)
Number of circles = 2 x (number of triangles) + 1
c) 25 circles
Answer for sheet # 347
Side of square: 8 units
Perimeter: 32 units
Area: 64 units