3+7 = 10
a square has 4 sides so 4 plus 4 equals 8 a triangle has 3 sides so 8 plus 3 is 11 and a circle has none so its 11
Triangle = sum of its 3 sides Square = sum of its 4 sides Rectangle = sum of its 4 sides
sum of length of all 7 sides
The sum for a triangle, or anything with 3 sides is 180
If the sum of the interior angles = 900 degrees, then it is a Heptagon and has seven sides. =] -ray
A heptagon is a shape that has seven sides of equal length. The perimeter of a heptagon can be found by multiplying the length of one side by seven. * * * * * No! The perimeter is the sum of the lengths of the seven sides. There is absolutely no requirement for the seven sides to be of equal length!
the sum of interior angles in a heptagon is = 900 For any 'n' sided figure , you can find out the sum of interior angles by a formula : (n-2) * 180 where n= no of sides
900 degrees.Explanation: The sum of the measures of the interior angles of a heptagon is 900°. A heptagon has 7 sides. So to calculate the sum of the measures of the interior angles in a heptagon, substitute 7 for n in (n − 2) • 180°. You get (7 − 2) • 180°, or 5 • 180°= 900°.
The perimeter of a triangle is the sum of its 3 sides
The perimeter of a triangle is the sum of its three sides.
It is the perimeter of the triangle.
The sum of the exterior angles of an n-gon is 360 degrees, however many sides it has.