Circle Parts
What is the line that goes from edge to edge and passes through the centre of the circle?
Diameter
What is the radius of a circle with a diameter of 4cm?
2cm
A circle has a diameter of 2cm, what is the circumference?
6.28cm
A rectangle has a length of 10cm and a height of 15cm. What is the area of the rectangle?
150 cm2
A rectangle has an area of 65mm2 and a length of 5mm. What is the width of the rectangle?
13mm
What is half the diameter called and goes from the centre to any edge on a circle?
Radius
What is the radius of a circle that has a diameter of 24.6cm?
12.3cm
A circle has a diameter of 66 mm, what is the circumference.
207.24 mm
A parallelogram has a height of 9 inches and a base of 3 inches. What is the area of the parallelogram?
27 inches2
A parallelogram has an area of 80cm2 and a base of 8cm. What is the height of the parallelogram?
h = 10cm
What is the perimeter of a circle called?
Circumference
What is the diameter of a circle that has a radius of 3cm?
6cm
A circle has a radius of 4cm, what is the circumference?
25.12cm
A square has a side length of 11 Km. What is the area of the square?
121 Km2
A triangle has an area of 30cm and a base of 5cm. What is the height of the triangle?
h = 12cm
What is the space within the circumference called?
A circle has a radius of 45cm, what is the diameter?
90cm
A circle has a radius of 10cm, what is the circumference?
62.8cm
A triangle has a base of 4cm and a height of 7cm. What is the area of the triangle?
14 cm2
A circle has a circumference of 146cm. What is the radius and diameter of the circle?
r = 23.24 cm
What is any line on a circle called?
Chord
A pizza has a diameter of 63 inches, what is the radius?
31.5 inches
You are growing a circle vegetable garden which has a radius of 3 meters. You are having issues with animals eating your vegetables. You need to put a fence up to have a goo crop. How much fencing do you need?
18.84 meters
A circle has a radius of 6mm, what is the area of the circle?
113.04 mm2
r = 6.77 m
d = 13.54 m