Rah-Rah-Rectangles
Nice Tri-angles
Can I Get a Formula?
Pizza Pi
Pizza Pi Part 2
100
What is the area of a rectangle with a length of 12 yards and a width of 3 yards?
Area=36 square yards
100
Base=8 inches, Height=10 inches. What is the area of the triangle?
Area=40 square inches
100
What is the formula for the area of a rectangle?
A=lw OR A=bh
100
A giant perfectly circular Aqua-Pool has a diameter of 648 feet. What is the radius of the Aqua-Pool?
radius=324 feet
100
A circle has a diameter of 8 inches. What is the Circumference of the circle?
C=25.12 inches
200
What is the perimeter of a rectangular fenced yard with a length of 45 feet and a width of 25 feet?
Perimeter=140 feet
200
If the height of a triangle is 4 units, and the area is 12 square units, how many units is the base of the triangle?
Base=6 units
200
What is the formula for the area of a triangle?
A=bh/2
200
What is the Circumference of a circle?
The Circumference is the distance around the outside of a circle (or the Perimeter in the language of circles)
200
What is pi?
Pi is a number that is approximately 3.14 that we can use to find measurements of circles.
300
Make 2 possible rectangles with an area of 12 square meters. What are their dimensions?
Many possible answers.
300
What 2 things have to be true about the HEIGHT of a triangle?
1. It must go from the top of the triangle to the base. 2. It must be perpendicular (form a 90 degree angle)
300
What is the formula for the area of a parallelogram?
A=base times height
300
A circle has a radius of 9 m. What is the area of the circle?
Area=254.34 square meters
300
A circle has a diameter of 18 m. What is the area of the circle?
Area=254.34 square meters
400
One rectangle has a width of 8 feet and an area of 48 square feet. Another rectangle has a length of 2 feet and an area of 48 square feet. Which rectangle has the GREATEST perimeter? HINT: DRAW THE RECTANGLES ON PAPER
The second rectangle has a perimeter of 52 (the first has a perimeter of 28
400
Why do we divide by 2 when we are finding area of a triangle?
Because a triangle is HALF of a rectangle so the area is HALF the area of a rectangle (base times height).
400
What is the formula for the circumference of a circle?
A=pi times diameter
400
How many more square inches are there in a 16 inch pizza than in a 10 inch pizza?
There are 122.46 more square inches of pizza.
400
How many more square inches are in a 14 inch pizza than in a 12 inch pizza?
There are 40.82 more square inches.
500
List the dimensions of least 4 possible rectangles that have an area of 48.
1) Length=4, Width=12 2) Length=6, Width=8 3) Length=1, Width=48 4) Length=3, Width=16
500
True or false: The area of a triangle with Base=4m and Height=3m is 12 square meters.
False: You have to divide your answer by 2...so the area of the triangle is 6 square meters.
500
What is the formula for the area of a circle?
A= pi times radius times radius
500
Which has more square inches of pizza...a large square pizza with 15 inches on each side...OR a large 16-inch diameter round pizza?
The SQUARE pizza has 225 square inches and the CIRCLE pizza has 200.96 square inches.
500
Which pizza has MORE CRUST, a large SQUARE pizza with 15 inches on each side or a large 16-inch diameter ROUND pizza?
The square pizza has more crust with 60 inches compared to the round pizza with 50.24 inches.
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