1 / 13

MJ2

MJ2. Ch 12.3 – Volume of Cylinders. Bellwork. Calculate the volume of the rectangular prism. Round to the nearest 10 th . Use the formula V = Bh. 4 ft. 3.25 ft. 21.5 ft. Note: To receive full credit you must write the problem & your answer. Bellwork Solution. V = Bh. V = ℓw h.

aimee
Télécharger la présentation

MJ2

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. MJ2 Ch 12.3 – Volume of Cylinders

  2. Bellwork • Calculate the volume of the rectangular prism. Round to the nearest 10th. Use the formula V = Bh 4 ft 3.25 ft 21.5 ft Note: To receive full credit you must write the problem & your answer

  3. Bellwork Solution V = Bh V = ℓwh V = 21.5(3.25)(4) V = 21.5(13) V = 279.5 ft2 4 ft 3.25 ft 21.5 ft

  4. Assignment Review • Text p. 522 # 6 – 15

  5. Before we begin… • Please take out your notebook and get ready to work… • In the last lesson we looked at the volume of rectangular prisms… • In today’s lesson we will look at the volume of cylinders… • We will continue to use the formula method to demonstrate what you have learned and to minimize errors…

  6. Objective 12.3 • Students will calculate the volume of cylinders using a formula

  7. Vocabulary • A cylinder is a solid whose bases are congruent, parallel circles, connected with a curved side Bases

  8. Cylinders • You can calculate the volume of cylinders by using the formula V = πr2h • The formula can be found on the FCAT reference sheet. • Be careful here! – The formula callsforr (radius) if you are given d (diameter), you must convert it to r by dividing by 2.

  9. Example V = πr2h 6 ft 1. Write the formula V = 3.14(6)2(20) 2. Substitute V = 3.14(36)(20) V = 3.14(720) V = 2260.0 ft3 3. Do the math 20 ft Your solution is cubed because you are measuring 3 dimensions

  10. Your Turn • In the notes section of your notebook draw & label the figure and then calculate volume using the formula method 30 m 18 m

  11. Your Turn Solution • In this example you are given diameter. The formula calls for r…so before you begin you must covert d to r by dividing 30 by 2 to get r = 15 V = πr2h V = 3.14(15)2(18) V = 3.14(225)(18) V = 3.14(4050) 30 m V = 12717 m3 18 m

  12. Summary • In the notes section of your notebook summarize the key concepts covered in today’s lesson. • Today we discussed: • Volume of cylinders • How can you tell the bases? • What methodology will you use to calculate the volume?

  13. Assignment • Text p. 526 # 9 – 22 Reminder • This assignment is due tomorrow • I do not accept late assignments • Draw the figure and show how you got your answer using the formula method

More Related