Answer:
512
Step-by-step explanation:
8 x 8 x 8 = 512
Answer:
Types of polygon
Polygons can be regular or irregular. If the angles are all equal and all the sides are equal length it is a regular polygon.
Regular and irregular polygons
Interior angles of polygons
To find the sum of interior angles in a polygon divide the polygon into triangles.
Irregular pentagons
The sum of interior angles in a triangle is 180°. To find the sum of interior angles of a polygon, multiply the number of triangles in the polygon by 180°.
Example
Calculate the sum of interior angles in a pentagon.
A pentagon contains 3 triangles. The sum of the interior angles is:
180 * 3 = 540
The number of triangles in each polygon is two less than the number of sides.
The formula for calculating the sum of interior angles is:
(n - 2) * 180 (where n is the number of sides)
Answer:
44
Step-by-step explanation:
Answer:
SU = 22
Step-by-step explanation:
SR = RU
4x - 1 = x + 8
3x - 1 = 8
3x = 9
x = 3
SR = 4(3) - 1 = 11
RU = 3 + 8 = 11
SU = 11 + 11 = 22