Day 68: Geometry: Surface Area

Day 65: Geometry: Missing Angles and Area of a Polygon

Do Now

Multiple Choice

Find the area:

• 13 in²

• 20 in²

• 26 in²

• 40 in²

Vocabulary

Multiple Choice

What is a 2-D representation of a 3-D figure?

• prism

• flat

• rectangle

• net

Multiple Choice

What means the sum of the areas of all the faces?

• volume

• surface area

• square units

• cubic units

Surface Area

Multiple Choice

Find the total surface area. Round to the nearest tenth.

• 15 m²
• 16 m²
• 18 m²
• 20 m²

Multiple Choice

A square pyramid is covered with decorative wrapping paper with no overlap.  The net of the box is shown on the right.  How many square centimeters of wrapping paper are needed to cover the surfaces of the box? 

• 108 cm²
• 324 cm²
• 180 cm²
• 432 cm²