What is the sum of the interior
angles of a polygon that has 7
sides?

900 °

Step-by-step explanation:

A heptagon is a 7-sided polygon with 7 interior angles that sum to 900 °. The name heptagon derives from the Greek words hepta- for seven and -gon for sides. A heptagon is also called a 7-gon or septagon ( septa- is Latin for seven).

The formula for calculating the sum of the interior angles of a regular polygon is: (n - 2) × 180°. Where n is number of sides.

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18. g

20. h 30 degree turn.

21. d 90 degree angles

and also 19 is a. a sphere not a cirlcle

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the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation: