Surface Area of Cylinders

What is surface area?

• Inside of the object
• The sum of all the areas of all the shapes that cover the surface of the object.
• Something Ms. Trejo made up?
• Surface area is what you get when you boil unicorn tears. 

Tags

CCSS.HSG.MG.A.1

What shape is this?

• Pyramid
• Cylinder
• Circle
• Cube

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

Determine the radius of the penny

• 59.66 mm
• 9.5 mm
• 38 mm
• 119.32 mm

Tags

CCSS.7.G.B.4

The radius is....

• a line that crosses through the center and touches each edge 
• the center point of a circle 
• a line from the center point to the edge of the circle
• an element in science

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

If my radius is 10ft, what is my diameter?

• 20ft
• 5ft
• 31.4ft
• 62.8ft

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18
• 10
• 9
• 8

What is the equation for the circumference of a circle?

• C=πr²

• C=l⋅w

• C=π d

• C=(1/2)bh

Tags

CCSS.7.G.B.4

What is the formula for the area of a circle?

• A = π r ²

• A = 1/2 (π r ²⁾

• A = 2πr

• A = πd

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 50.27
• 78.23
• 98.12
• 201.06

Tags

CCSS.7.G.B.4

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

Tags

CCSS.7.G.B.4