maths

What is the formula for the sum of the interior?

• S=360
• S=(n-2)180
• n=360/ext. angle
• 1 int. angle + 1 ext. angle=180

What is the SUM of the angle measures in a nonagon (9 sides)?

• 1440°
• 900°
• 1080°
• 1260°

Find the value of X

• 94
• 25
• 36
• 180

What is the name of a 7 sided polygon?

• hexagon
• heptagon
• octagon
• nonagon

Find the value of X.

• 100° 
• 110° 
• 150° 
• 168° 

How many sides does a dodecagon have?

• 10

• 11

• 12

• 13

The measurement of the sum an interior
angle of a regular nonagon is 1080°

• True
• False

Find the measureof the sum of the exterior angles in a hexagon

• 360
• 180
• 720
• 540

What is the formula for the sum of exterior angles in a polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

Work out the size of the missing angle

• 55

• 90

• 125

• 305