1 / 10

EXAMPLE 1

Draw a net of the triangular prism. Draw one base with a rectangle adjacent to each side. Draw the other base adjacent to one of the rectangles. Drawing a Net. EXAMPLE 1. SOLUTION. METHOD 1. For the rectangular faces, draw adjacent rectangles. Draw the

teddy
Download Presentation

EXAMPLE 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Draw a net of the triangular prism. Draw one base with a rectangle adjacent to each side. Draw the other base adjacent to one of the rectangles. Drawing a Net EXAMPLE 1 SOLUTION METHOD 1

  2. For the rectangular faces, draw adjacent rectangles. Draw the bases on opposite sides of one rectangle. Drawing a Net EXAMPLE 1 METHOD 2

  3. You are painting a storage chest with the given dimensions. Find the surface area to be painted. Using a Net to Find Surface Area EXAMPLE 2 Storage Chest

  4. There are two square faces and four rectangular faces, so the surface area is 2225 in.2+4450 in.2 =2250 in.2 Using a Net to Find Surface Area EXAMPLE 2 SOLUTION Draw a net of the chest. The area of each square face is 15 in. 15in. = 225 in.2 The area of each rectangular face is 30 in. 15 in. = 450 in.2

  5. ANSWER The surface area of the storage chest is 2250 square inches. Using a Net to Find Surface Area EXAMPLE 2

  6. Find the surface area of the triangular prism. 1 = 2( 1012)+ (13+ 13+ 10)15 2 ANSWER The surface area of the prism is 660 square centimeters. Using a Formula to Find Surface Area EXAMPLE 3 S = 2B+ Ph = 660

  7. Find the surface area of the can of sloppy joe sauce. ANSWER The surface area of the can is about 369 square centimeters. Finding the Surface Area of a Cylinder EXAMPLE 4 Packaging SOLUTION The radius is one half the diameter, so r =4 cm. S = 2πr2+ 2πrh Write formula for surface area. = 2π(4)2 + 2π(4)(10.7) Substitute 4 for r and 10.7 for h. ≈ 369.45 Evaluate using a calculator.

  8. 1. ANSWER 222 ft2 for Examples 1, 2, 3, and 4 GUIDED PRACTICE Draw a net of the solid. Then find the surface area. Round to the nearest tenth. Check your answer for reasonableness.

  9. ANSWER 384 m2 for Examples 1, 2, 3, and 4 GUIDED PRACTICE

  10. ANSWER 1407.4 in.2 for Examples 1, 2, 3, and 4 GUIDED PRACTICE

More Related