Geometry Angle Measures and Areas of Polygons

What is the sum of the interior angle measures of a regular octagon?

• $1440\degree$

• $900\degree$

• $1080\degree$

• $360\degree$

What is the measure of each interior angle of a regular octagon?

•  $180\degree$ 

•  $108\degree$ 

•  $135\degree$ 

•  $90\degree$ 

What is the value of x?

• $150\degree$

• $130\degree$

• $120\degree$

• $100\degree$

A square has an apothem measuring 2.5 cm and a perimeter of 20 cm. What is the area of the square, rounded to the nearest square centimeter?

• $25\ cm^2$

• $100\ cm^2$

• $13\ cm^2$

• $50\ cm^2$

Tags

CCSS.6.G.A.1

The area of the regular hexagon is  $10.4\ in^2$ . What is the measure of the apothem, rounded to the nearest tenth of an inch?

• 1.3 in

• 3.4 in

• 2.0 in

• 1.7 in

Tags

CCSS.6.G.A.1