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Area and Perimeter
By: Sabrina and Maddie
• Maddie wants to cover the inside of the triangle purple how much construction paper does she need?
12cm
8 cm
Answer #1
• The way to find the area of a triangle is to multiply the base times the height then you divide it by 2 or multiply it by ½.
• then you multiply 12 by 8 and you get 96 cm then you divide it by two and you get 48 cm2.
• Maddie needs 48 cm of ribbon
• Lucy wants to decorate the middle rectangle with a blue border how much ribbon does she need?
13 cm
46 cm
Answer #2
• To find the perimeter of this shape you must add up all the sides around the shape to get your answer.
• 46 + 46 + 13 + 13 = 118 cm
• She needs 118 cm of ribbon
• Bailey wants to cover the sign in pink fur how much fur will she need to cover the sign?
10.5 cm
16.5 cm
Answer #3
• The way to find the area of a rectangle is to multiply the height times the width.
• you then multiply 16.5 by 10.5 and you get 173.25 cm2.
• What is the border around the rectangle?
19 cm
40 cm
Answer #4
• The way to find the perimeter of each figure is to add up all the sides around the shape.
• 40 + 40 + 19 + 19 = 118 cm
• The border is 118 cm
• Sabrina wants to cover the American Girl sign with a Puppy Love sign how big will the sign be?
15cm
10 cm
Answer #5
• The way to find the area of a rectangle is two multiply the height times the width.
• Multiply 15 x 10 and you get 150 cm2
Conclusion
• Thanks for watching our slide show!
• Bye! Maddie and Sabrina.