Best Answer

Umm...

You add the sides

Example if there was a triangle with sides 10mm, 50mm, 90mm

you add them 10mm+50mm+90mm

therefore it equals 150mm

Q: What is the equation for finding the perimeter of a three sided shape?

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Add up the lengths of the sides.

The Perimeter of a shape can be found by adding the sides of said shape together. In the case of a Pentagon (five sided shape) you can simply multiply the known seven inches per side, by five. This leaves you with 35inches as your perimeter.

The equation to find the size of the interior angle of an n sided shape is (n-2)180/n For a 120 sided shape, you need to plug n=120 into this equation. (120-2)180/120 =118x180/120 =177 Thus a 120 sided shape does have an angle of 177 degrees, and the statement in the question is true.

A one sided shape

Yes, if the shape happened to be a pentagon ( 5 sided figure ) , each side could be 5 meters and 5 times 5 is equal to 25.

Related questions

A 5 sided shape is a pentagon. Its perimeter has no relevance.

for a 4 sided shape... w+w+L+L=perimeter perimeter is the outside of a shape. add all of the sides to get the perimeter.

The formula for the perimeter of a multi-sided shape is the sum of its sides added together.

Perimeter = 6*7 = 42 cm

The perimeter of this two-sided shape is 300+160 = 460 units of length.

The equation for and interior angle of an n sided shape is (n-2)180/n In this case we have a 12 sided shape. Plugging n=12 into the equation gives us: (12-2)180/12 = 10x180/12 = 150 Thus an interior angle of a 12 sided shape would be 150 degrees.

Add up the lengths of the sides.

The Perimeter of a shape can be found by adding the sides of said shape together. In the case of a Pentagon (five sided shape) you can simply multiply the known seven inches per side, by five. This leaves you with 35inches as your perimeter.

The equation to find the size of the interior angle of an n sided shape is (n-2)180/n For a 120 sided shape, you need to plug n=120 into this equation. (120-2)180/120 =118x180/120 =177 Thus a 120 sided shape does have an angle of 177 degrees, and the statement in the question is true.

The name for a 57 sided shape is derived by combining the name for a 50 sided shape with the name for a 7 sided shape. A 57 sided shape is called a pentacontaheptagon.

10 sided 2D shape is called a decagon 20 sided 2D shape is called a icosagon 30 sided 2D shape is a swimming pool 40 sided 2D shape is unknown 50 sided 2D shape is unknown 60 sided 2d shape is unknown 70 sided 2d shape is unknown 80 sided 2d shape is unknown 90 sided 2d shape is unknown 100 sided 2d shape is unknown 110 sided 2d shape is unknown 111 sided 2d shape is unknown 120 sided 2d shape is unknown 130 sided 2d shape is unknown

Yes, if the shape happened to be a pentagon ( 5 sided figure ) , each side could be 5 meters and 5 times 5 is equal to 25.