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# Perimeter and Area Word Problems

## by emteacher on Nov 05, 2011

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## Perimeter and Area Word ProblemsPresentation Transcript

• Perimeter and Area Can you tell the difference?
• Helpful HintsSteps for solving perimeter or areaword problems:Look for clue words, decide: perimeteror area?Draw a pictureDecide on a formulaSolve
• Example OneStephanie wants to build a fence around hergarden to keep the rabbits out! The length ofher garden is 4 feet and the width is 6 feet.How much fencing will she need?
• Example One1. First, look for clue words!Stephanie wants to build a fence around hergarden to keep the rabbits out! The length is4 feet and the width is 6 feet. How muchfencing will she need?The words “fence” and “around” tell me I’mgoing to be ﬁnding perimeter.
• Example One2. Next, draw a picture.Stephanie wants to build a fence around hergarden to keep the rabbits out! The length is4 feet and the width is 6 feet. How muchfencing will she need? 3. I have drawn a rectangle. 4 ft. I will use the formula for the perimeter of a rectangle. 6 ft.
• Example One4. I will solve using the following formula: (2 x l) + (2 x w) (2 x 4) + (2 x 6) 8 + 12 20 ft.
• Now it’s your turn!Take a look at these problems. Wewill:1. Look for clue words and decide:perimeter or area?2. Draw a picture.3. Decide what formula to use.4. Solve.
• Problem #1 1. Perimeter orLinda was placing new Area?carpet inside her room.She measured the width 2. Draw aof her room. It was 12 picture.feet. The length was 16feet. How much carpet 3. What formuladid Linda need to cover will you use?her ﬂoor? 4. Solve
• Linda was placing new carpetinside her room. Shemeasured the width of her 1. Perimeter orroom. It was 12 feet. The Area?length was 16 feet. Howmuch carpet did Linda needto cover her ﬂoor? 2. Draw a picture. 3. What formula will you use? (l x w) 12 ft. 4. Solve 16 ft.
• Linda was placing new carpet inside her room. She measuredthe width of her room. It was 12 feet. The length was 16 feet.How much carpet did Linda need to cover her ﬂoor? SOLUTION: lxw 12 x 16 192 ft.²
• Problem #2 1. Perimeter or Area?Larry was covering asquare bulletin board 2. Draw awith paper. One side picture.was of the square was 3ft. How much paper did 3. What formulahe need? will you use? 4. Solve.
• Larry was covering asquare bulletin board with 1. Perimeter or Area?paper. One side was of thesquare was 3 ft. Howmuch paper did he need? 2. Draw a picture. 3. What formula will you use? (l x w) 3 ft. 4. Solve
• Larry was covering a square bulletin board with paper.One side was of the square was 3 ft. How much paper didhe need? SOLUTION: lxw 3x3 9 ft.²
• Problem #2 1. Perimeter or Area?Karen wants to putribbon around her 2. Draw asquare frame. One side picture.is 17 inches. How muchribbon will she need? 3. What formula will you use? 4. Solve.
• Karen wants to put ribbon 1. Perimeter oraround her square frame. Area?One side is 17 inches. Howmuch ribbon will she need? 2. Draw a picture. 3. What formula will you use? 4xs17 in. 4. Solve
• Karen wants to put ribbon around her square frame. Oneside is 17 inches. How much ribbon will she need? SOLUTION: 4xs 4 x 17 68 in.
• ClosureYou learned a 4 step process. Doyou remember the 4 steps? Writethese on your slate.What do these 4 steps help us do?