Upcoming SlideShare
×

# TechMathII - 2.6 - Area and Surface Area

646 views
424 views

Published on

Published in: Education
0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

Views
Total views
646
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
15
0
Likes
0
Embeds 0
No embeds

No notes for slide

### TechMathII - 2.6 - Area and Surface Area

1. 1. Bell Ringer
2. 2. TO FIND THE SURFACE AREA OF A CYLINDER: SA= 2πr² + 2πrh Area of 2 circles + Circumference times height
3. 3. EXAMPLE This soup can has a diameter of 2.625 inches and a height of 3.875 inches. To find the Surface area and volume the soup can: SA= 2πr² + 2πrh Next use the formula to fine the Volume: (area of the base times height) V = Bh = πr²h V = 3.14 * 1.3125² * 3.875 V = 20.96
4. 4. Find the surface area and volume of a cylinder with a diameter of 15 feet and height of 20 feet.
5. 5. Find the surface area and volume of a cylinder with a radius of 12 feet and height of 22 feet.
6. 6. You Try: Find the surface area and volume Diameter is 22 meters Height is 53 meters SA= 2πr² + 2πrh V = Bh = πr²h
7. 7. Surface Area and Volume of a Sphere <ul><li>Example : </li></ul><ul><li>SA = 4πr² V = V = 4/3 πr³ </li></ul>The radius of the Weather balloon is 3 feet
8. 8. Surface Area and Volume of a Sphere <ul><li>Example : </li></ul><ul><li>SA = 4πr² V = 4/3 πr³ </li></ul>The radius of the ball is 23 cm.
9. 9. You Try! <ul><li>Find the Surface Area and Volume of a Basketball with a radius of 50 cm. </li></ul><ul><li>SA = 4πr² V = 4/3 πr³ </li></ul>