Here are a few to practice: Before you begin, remember to: 1)Picture it in your head 2)Draw your net 3)Write your measurements on your net 4)Pay attention.

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Presentation transcript:

Here are a few to practice: Before you begin, remember to: 1)Picture it in your head 2)Draw your net 3)Write your measurements on your net 4)Pay attention to your formula 5)Calculate carefully (use a calculator) 6)Add up all the parts (find the sum of the parts 7)Remember you are measuring in SQUARES!

A = ? Answer: A = 324 sq units

A = ? Answer: A = 1,520 sq cm

A = ? 9 Answer: A = 96 sq units

A = ? Answer: A = 672 sq cm REMINDER: MAKE A NET!!!

A = ? Answer: A = 314 sq cm

6” 20” 5” P = ? Answer: P = = 52” Remember, this is not important for the Perimeter!

6” 20” 5” C = ? Answer: P = 6 x 20 = 120 SQ ” Remember, this is not important for the Perimeter!

Can you answer this? Circles in Real life You are building a circular pen for your dog that has a diameter of 40 feet. You want to tile it with tiles that measure 1 ft x 1 ft. Each tile costs $3.00. You also want to build a fence around the pen. The fence is sold in 4 foot pieces and cost $80.00 per piece. How much money will you have to spend? (Show all your work) (1 pt)How many tiles will you need? ___________ (1 pt)How much $ for tiles? ______________ (1 pt)How many pieces of fence will you need? __________ (1 pt)How much $ for Fence? ______________ (4 pts)How much all together? ______________ 1256 tiles 1256 x $3.00 = $3, feet of fence ÷ 4 ft pieces = 31.4 pieces of fence = 32 pieces 32 pieces x $80.00 = $2,560 $2,560 for fence + $3,768 = $6,328