2C Area Perimeter

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2C Area Perimeter
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Find the area and perimeter
A ½ BH
applets (interactive)   ShapeExplorer   
TriangleArea  
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A BH
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A ½ h(b1b2)
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A h(b1b2) 2
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Trisha has a rectangular pool in her backyard
that measures 14 feet by 40 feet. She built a
concrete deck around the pool that is 6 feet
wide. What is the area of the deck? 
240240 8484 36363636 792
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Trisha has a rectangular pool in her backyard
that measures 14 feet by 40 feet. She built a
concrete deck around the pool that is 6 feet
wide. What is the area of the deck? 
1466 26
26 x 52 1352 14 x 40 560 1352 560 792
4066 52
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• SCORING CRITERIA
• 4  WELL DONE
• correct
• very complete
• very clear
• 3   FINE TUNE
• mostly correct
• mostly complete
• mostly clear
• 2   FINISH OR FIX
• several errors
• partly complete
• partly clear
• 1   START OVER
• major errors

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4
10
1
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3
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0
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2
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JP 
15
JP   Find your dream house and paste the floor
plans in your JP.  Find the area of your dream
house.
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Area of Triangle
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ShapeExplorer    
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TriangleArea   
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Area Explorer
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Perimeter Explorer
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Triangle Explorer
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Box Perimeter Applet
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Perimeter vs. Area
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Triangle Test 
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Pentomino Game