1 / 14

140 likes | 154 Views

Perimeter. Rectangles, Squares, and Triangles. Perimeter. Measures the distance around the edge of any flat object. To find the perimeter of any figure, ADD the lengths of its sides. What is a rectangle?. A rectangle has: 4 sides 4 square corners or right angles

Download Presentation
## Perimeter

**An Image/Link below is provided (as is) to download presentation**
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.
Content is provided to you AS IS for your information and personal use only.
Download presentation by click this link.
While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

**Perimeter**Rectangles, Squares, and Triangles**Perimeter**• Measures the distance around the edge of any flat object. • To find the perimeter of any figure, ADD the lengths of its sides.**What is a rectangle?**• A rectangle has: • 4 sides • 4 square corners or right angles • Opposite sides are of equal lengths • Opposite sides are directly across from each other**To find the perimeter of a rectangle:**18 Use the formula P= 2 x length + 2 x width P= 2 x 18 + 2 x 15 P= 36 + 30= 66 15 Or ……. You can always add the sides. P= 18 + 18 +15 +15= 66**What is a square?**A square has: • 4 equal sides • 4 right angles**To find the perimeter of a square:**3 Use the formula: • P = 4 x side • P = 4 x 3 = 12 3 Or . . . . You can add the sides. P = 3 + 3 + 3 + 3 = 12**What is a triangle?**• A triangle has 3 sides. All triangles may not look the same, but they all have 3 sides.**To find the perimeter of a triangle:**Use the formula: • P = side + side + side • P = 6 + 6 + 4 = 16 6 6 4**Circumference of a Circle**• The perimeter, or the distance around a circle, is called the circumference.**Circumference of a Circle**• To find the circumference of a circle, you need to know either the diameter or radius of the circle.**The diameter of a circle is a line segment drawn through the**center of the circle with endpoints on the circle. Diameter**The radius is a line segment connecting the circle’s**center to a point on the circle. The length of the radius is one-half the length of the diameter. Radius Diameter**The formula for finding circumference (C) is C = pi x**diameter. • The value of pi is about 3.14, so the formula for finding the circumference of a circle is C = 3.14 x diameter.**Find the circumference of the circle.**• C = pi x diameter • C = 3.14 x 4= 12.56 4

More Related