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Diameter and Radius
Circumference
Area of a Circle
Conversion
Square Roots
100
A circle has a diameter of 16 m, what is the radius of the circle in cm? SHOW ALL FORMULAS AND STEPS TO SOLVE THE PROBLEM
800 cm
100
What is the estimated circumference of a circle with the radius of 4.5 m
27 m
100
A circle has a radius of 5 cm, when cut into 8 pieces and assembled into a parallelogram is has a base of 10 cm, what is the area of the circle when all the pieces are put back together in a circle?
50 cm 2
100
15.7 km = ___ cm?
1,570,000 cm
100
Draw a diagram that represents a 5 "squared" square on the board. what does 5 "squared equal?
25
200
A circle has a radius of 9 cm, what is the diameter of the circle in mm? SHOW ALL FORMULAS AND STEPS TAKEN TO SOLVE THE PROBLEM
180 mm
200
A glass has a circular base of 22.5 cm, what is the: a) diameter of the base b) the radius of the base SHOW ALL FORMULAS AND STEPS TAKEN TO SOLVE THE PROBLEM
a) 7.16 cm b) 3.58 cm
200
a circle has a diameter for 8 cm, what is the area of the circle?
50.24 cm 2
200
9 m 2 = ___ km 2
0.000009 km 2
200
what is the square root of 36 cm "squared"?
6 cm
300
A circle has a diameter of 1.5 decametres, what is the radius of the circle in metres? SHOW ALL FORMULAS AND STEPS TAKEN TO SOLVE THE PROBLEM
7.5 m
300
A circular swimming pool is 30 m around. What is one length from one end of the pool to another, passing through the center?
9.55 m
300
which donut has the most area? A) a glazed donut with a circumference of 10 cm OR B) a chocolate donut with a radius of 4 cm?
A) glazed donut d= 3.18 cm, r = 1.59 cm A= 7.94 cm2 B) chocolate donut A= 50.24 cm 2
300
One week before christmas ruldolph the red nose reindeer was training for christmas deliveries , and ran a total of 131 kilometers. How many meters did Rudolph run? If he ran every day of the week, how many meters on average did rudolph run each day?
131,000 meters during the week 18714.285 meters on average each day
300
Estimate the square root of 20 Show how you came up with your answer and the correct symbol used to "estimate" the square root
4.4 - 4.7 "squared"
400
a circle has a radius of 125 mm, what is the diameter of the circle in meters?
0.25 m
400
A hoola hoop has a radius of 40 cm, what is the circumference of the hoola hoop in m?
2.512 m
400
A pizza has a radius of 15 cm and is divided into 4 large slices. What is the area of ONE of those four slices?
TOTAL AREA = 706.5 cm 2 ONE SLICE = 176.62 cm 2
400
A swimming pool is 50 meters long. Each day a swimmer swam a total of 75 lengths of the pool for practice. How many kilometers did he swim over a 15 day period?
Total meters swam each day = 3750 Total meters swam over 15 day period (3750 x 15) = 56,250 The swimmer swam 56.25 kilometers over a 15 day period (56,250 / 15)
400
what is the square root of 6400?
80 "squared"
500
List any 3 formulas that aid in one finding the diameter (d) and radius of a circle
d= 2r r= 1 ---- d 2 r= d/2 d=c/pi (3.14)
500
Identify which deal is the better buy A) 1 large apple pie with a diameter of 30 cm for a total of $12.00 OR B) 2 small apple pies with a radius of 10 cm for a total of $9.00?
2 small apple pies with a radius of 10 cm 62.8 cm each x 2 = 125.6 cm in circumference compared too 1 larhe apple pie with a diameter of 30 cm 94.2 cm
500
A giant chocolate chip cookie has a circumference of 22.5 cm. The cookie is cut up into 8 pieces, what is the area of each piece of the cookie?
TOTAL AREA = 40.7 cm 2 ONE PIECE OF THE COOKIE = 5.08 cm 2
500
Santa travels approximately 510,000,000 km around the world every Christmas even in 32 hours. How many meters does santa travel each minute?
265625000 m
500
Estimate the square root of 4200
64 - 65 "squared"