Download presentation

Presentation is loading. Please wait.

Published byDavin Gage Modified over 2 years ago

1
SA Cylinders Spheres and Cones Math 10-3 Ch.3 Measurement

2
Surface Area of a Cylinder – Review Given the following cylinder, determine the surface area: Height = 12 cm Radius = 6 cm Formula =

3
SA of a Cylinder - Review First, calculate the area of the “label”: = 2 x 3.14 x 6 cm x 12 cm = 452.16 cm 2 Next, calculate the area of the circles: = 2 x 3.14 x 6 cm x 6 cm = 226.08 cm 2 Last, add together to get the total: SA = 452.16 cm 2 + 226.08 cm 2 = 678.24 cm 2

4
Surface Area of a Sphere – Review Given the following sphere, determine the surface area: Radius = 3.5 mm Formula = SA = 4 x 3.14 x 3.5 mm x 3.5 mm = 153.86 mm 2

5
Surface Area of a Cone Consider a cone: s = slant height r = radius h = height Consider the net of a cone: What shapes do you see? small circle and ~1/3 of a large circle

6
SA of a Cone What is the formula for the area of a circle? A = r 2 The formula for the other shape is A = r s Add these together to get the SA formula! SA cone = r 2 + rs

7
Ex2. Calculate the surface are of the following cone: s = 8 cm r = 4 cm formula = SA = r 2 + rs

8
SA of a Cone First, determine the area of the circle: = 3.14 x 4 cm x 4 cm = 50.24 cm 2 Next, determine the area of the slanted part: = 3.14 x 4 cm x 8 cm = 100.48 cm 2 Last, add together to get the total Surface Area = 50.24 cm 2 + 100.48 cm 2 = 150.72 cm 2

Similar presentations

OK

1 of 84 SHAPE AND SPACE Circles. 2 of 84 The circumference of a circle Use π = 3.14 to find the circumference of this circle. C = πd 8 cm = 3.14 × 8 =

1 of 84 SHAPE AND SPACE Circles. 2 of 84 The circumference of a circle Use π = 3.14 to find the circumference of this circle. C = πd 8 cm = 3.14 × 8 =

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on 98 notified sections of companies act 2013 Ppt on bank lending 2016 Ppt on sst quiz Ppt on bgp routing protocol Download ppt on mind controlled robotic arms building Ppt on bmc remedy service Ppt on artificial intelligence in machines Ppt on conservation of natural resources in india Ppt on source code theft Ppt on biodegradable and non-biodegradable objects