Word Problems
After stepping into a room with unusual lighting, Elliot's pupil has a radius of 77.9 millimetres. What is the pupil's diameter
155.8 millimeters
If the diameter is 9.7m what would the area be?
73.89m^2
If the radius is 55.3cm what is the circumference
347.4cm
What is radius?
Radius is half of the diameter
How do you find the radius with only knowing the diameter
D/2
The floor of a round hut has a diameter of 6 metres. What is the floor's circumference?
18.84m
if the circumference is 1.1km what is the area?
0.09km^2
What is circumference?
The messurement fully around the circle.
If area is 17.3cm^2 what is diameter
4.69cm
what is the formula for area?
PIr^2
jack takes a cupcake tray, measures the bottom of one of the cups, and calculates that it has a circumference of 66.7 centimetres. What is the cup's radius?
10.61cm
if the circumference is 17m what is the area?
22.99m^2
if the radius is 76mi what is the circumference?
477.54mi
What is diameter?
The line that measures the length of the circle that goes fully through the exact middle of the circle.
what is a chord?
a line that goes across the circle but not directly in the middle like the diameter.
Carter got a gold medal for winning a contest. He measured the medal and calculated that it has a circumference of 18.84 centimetres. What is the medal's diameter?
5.99cm
if your diameter is 45mi what is the area?
1590.43mi^2
*Daily Double*
Say your radius is 7.89m what is the area of this circle?
After you solve the area what is the area of 1/3 of the circle
65.19m^2
If the circumference is 7.8in what is the radius?
2.83in
what are the formulas to find circumference?
2PIr
PId
A clock tower has a large bell that rings on the hour. A visitor measures the edge of the bell and calculates that it has a circumference of 12.56 metres. What is the edge's diameter?
3.99m
radius is 4m^2 what is the area
201.06m^2
if your area is 17in what is the circumference?
14.61in
How do you find the diameter by only knowing the circumference?
C/PI
2√PIa