Formulas
What is the formula to find the area of a parallelogram?
A = b x h
What is the radius of a circle with the diameter 11 cm?
5.5 cm.
In a botanical garden, there is a circular flower bed with a diameter of 16 meters. The gardener plans to place a wooden plank halfway across the flower bed for maintenance purposes. How long should the plank be?
8 Meters
If a parallelogram was 6 cm tall and 4 cm wide, what would it's area be?
24 cm.
what is the radius of a circle with the diameter of 2 mm?
1 mm.
What is the formula to find the area of a triangle?
A = b x h ÷ 2
What is the diameter of a circle with the radius 4.6 cm?
9.2 cm.
A circular pizza has a diameter of 31 cm. The chef wants to know where the middle of the pizza is so they can cut it up evenly. How many cm is the middle of the pizza from the outside?
15.5 cm
If a triangle had the base of 9 cm and the height of 10 cm, what would it's area be?
45 cm.
What's the area of a triangle that has a base of 3 cm and a height of 6 cm?
9 cm.
What is the formula to find the base of a triangle?
b = A x 2 ÷ h
What is the area of a parallelogram that has a base of 5 cm and a height of 7 cm?
35 cm.
An asteroid hit the moon and created a massive round crater. Scientists measured the diameter of the crater as 31.2km. What is the circumference of the crater?
98.01 km.
If a triangle had a base of 7 cm and the area of 38.5 cm, what would it's height be?
11 cm.
What is the formula to find the height of a triangle?
h = A x 2 ÷ b
What is the formula to find the circumference of a circle using the radius?
c = 2 x π x r
What is the base of a triangle that has a height of 6 m and an area of 18 m?
6 m
Alexa needs to wrap a cake she made with a ribbon. The cake has a radius of 12.5cm. How long does the ribbon need to be?
78.53 cm
If the radius of a circle is 6 cm… what would the circumference be?
37.69 cm
What is the formula to find the radius of a circle using the circumference?
r = c ÷ π ÷ 2
What is the formula to find the diameter of a circle using the circumference?
d = c ÷ π
What is the circumference of a circle that has a radius of 2.5 km?
15.70 km.
You need to wrap a label around a can. If the diameter of the can is 9.5cm, what length does the label need to be?
29.84 cm.
If the diameter of a circle is 33 m… what would the circumference be?
103.67 m
What is the formula to find the area for a circle?
a = πr2
(ex. π x 8 x 8)