Interior and Exterior Angles in a Polygon knowledge check

Angles on a straight line =

• 360

• 90

• 180

• 270

Angles in a triangle add up to ?

• 90

• 180

• 360

• 270

Sum of Interior angles equations is

• $n\ \times\ 180\ =\ Sum\ of\ Interior\ Angles$

• $\left(n-2\right)\ \times180=\ Sum\ of\ Interior\ Angles$

• $\left(\frac{n}{2}\right)\times180\ =\ Sum\ \ of\ Interior\ Angles$

One interior angles is found by...

• $Sum\ of\ interior\ angles\ \div\ number\ of\ sides\ in\ the\ polygon$
  

• $Sum\ of\ interior\ angles\ -\ number\ of\ sides\ in\ the\ polygon$

Exterior and Interior Angles total ?

• 270

• 360

• 90

• 180

Exterior angles in a polygon can be found by..

• $Number\ of\ sides\ \div360$

• $Number\ of\ Sides\ \times360$

• $360\div Number\ of\ sides$

A Decagon has 10 sides, What is the sum of interior angles?

• 1080

• 720

• 360

• 1440

A decagon has 10 sides , What is ONE interior angle ?

• 160

• 140

• 122

• 144

If a shape has an exterior angle of

 $32.7\degree$  . How many sides does the polygon have ?

• 8

• 9

• 10

• 11

If a polygon has an exterior angle of

 $25.7\degree$ , what is the interior angle ?

•  $334.3\degree$  

•  $154.3\degree$  

•  $64.3\degree$  

•  $244.3\degree$