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By: Hannah Moreno Note: Round all decimals to the nearest whole number. Surface Area Circumference Area Q Area T Area C Perimeter Keeping Score Surface Area Circumference Area Perimeter 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 Keeping Score What is the surface area of the shape below? 4 in Surface Area: __________ in² Answer:108 in² Help Keeping Score Help What is surface area? A. The area of any surface on a geometrical shape B. The area of all the surfaces of a geometrical shape added together C. The area of every quadrilateral surface on a geometrical shape added together D. The area of any surface on a geometrical shape divided by two Answer: B Keeping Score Help True or False (circle one): You usually only find the surface area of a 2-dimensional figure. TRUE FALSE Answer: False Keeping Score 4 meters What is the surface area of the figure below? Surface Area: _______ cm² 4m Answer: 76 cm² Help Keeping Score Help What is the circumference of the circle below? Circumference: _________ yd Diameter: 6 yd Answer: 19 yd Keeping Score Help Circumference to a circle is like _______ to a square. Fill in the blank. A. Area B. Diameter C. Volume D. Perimeter Answer: D Keeping Score Help What is the formula for finding the circumference of a circle? A. Diameter * ∏ (3.14) = Circumference B. Radius² * ∏ (3.14) = Circumference C. Radius * ∏ (3.14) = Circumference D. Diameter² * ∏ (3.14) = Circumference Answer: A Keeping Score Help What is the radius of the circle below? Radius: _________ mm Circumference: 188 mm Answer: 30 mm Keeping Score What is the area of the shape below? Area: ________ decimeters² Answer: 169 decimeters² Help Keeping Score What is the area of the shape below? Area: __________ in² Radius: 7 inches Answer: 154 in² Help Keeping Score Help What is the formula for the area of a quadrangle? A. Perimeter * ∏ (3.14) = Area of a quadrangle B. Base * Height * ∏ (3.14) = Area of a quadrangle C. Base * Height = Area of a quadrangle D. Base * Height * Perimeter = Area of a quadrangle Answer: C Keeping Score What is the area of the shape below? Area: _________ ft² Diameter: 5 feet Answer: 20 ft² Help Keeping Score Help What is the formula for finding perimeter? A. Base + Height = Perimeter B. All Sides Added Together = Perimeter C. Base * Height = Perimeter D. Base + Height * Area = Perimeter Answer: B Keeping Score What is the perimeter of the shape below? 4 yards 4 yards 2 yds 2 yds Perimeter: _________ yds Answer: 32 yds Help Keeping Score True or False (circle one): All the shapes below have a perimeter of 16 meters. 2m TRUE 1m 4m 3m FALSE Answer: False Help Keeping Score What is the perimeter of the shape below? Perimeter: __________ ft Answer: 56 ft Help SA 100 SA 300 SA 400 4 cm To find surface area, all you have to do is find the area of each surface and add it all together. Look at the shape below and see if you can find its surface area. Surface area: _______cm² Answer: 88 cm² SA 200 C 100 C 200 C 300 C 400 The circumference of a circle is just like the perimeter of a square, only it’s a circle. To find the circumference of a circle, you need to know the diameter. This is the formula: Circumference = Diameter * ∏ (3.14) Answer: 25 cm Diameter = 8 cm Look at the example. Try to find the circumference of this circle. Circumference: ________ cm A 300 Finding the area of a quadrangle is simple. All you have to do is multiply the base and the height together and your answer is the area of the quadrangle. Try to find the area of the quadrangle below: 3 cm Area: ________cm² 5 cm Answer: 15 cm² A 100 This is the formula of finding the area of a triangle: Base * Height / 2 = Area. It’s just like finding the area of a quadrangle but you divide your answer in two. Try to find the area of the triangle below: Area: _________ cm² Height = 4 cm Base = 7 cm Answer: 14 cm² A 200 The formula you need to find the area of a circle is: Area = Radius² * ∏ (3.14) Look at the example below and try to figure out the area of the circle. Area: ___________ cm² Radius: 4 cm Answer: 50 cm² A 400 P 100 P 300 P 400 2 cm 7 cm To find the perimeter of any shape, all you have to do is find the measurement of each of the sides and add them all together. See if you can find the perimeter of the shapes below: 3 cm 1. Perimeter: __________ cm 1 cm 7 cm 9 cm 3. Perimeter: __________ cm 2. Perimeter: __________ cm Answers: 1. 20 cm, 2. 28 cm, 3. 26 cm P 200 Mom Dad Points Points