Triangle
Circumference
Parallelogram
Find The Unknown
100

What is the formula for area of a triangle?

area = base x height / 2

100

Find circumference: When diameter = 5

15.7

100

What is the formula for area of a parallelogram?

Area = base x height

100

The circumference is 65.94. What is the diameter?

21

200

RANDOM: What is the radius of a circle with a diameter of 10cm?

5cm

200

Find Circumference when diameter - 20

62.83

200

How many sides does a parallelogram have? 


4

200

The area of a parallelogram is 45 cm2. The height is 5 cm what is the base?

9

300

What is the area of a triangle with a base of 2.1m and a height of 3.4m?

3.57m

300
Find Circumference when Radius = 25
157.08
300

A parallelogram has a base of 4cm and a height of 8cm, what is the area of this parallelogram?

32cm

300

The circumference of a circle is 19.468. What is the radius?

3.1

400

What is the base of a triangle with an area of 24m, and a height of 6m?

8m

400
Find Circumference when Radius = 50
314.16
400

If a parallelogram has an area of 30cm, and a height of 5cm, what is its base?

6cm

400

34 = 7 + 9x

x = 3

500

What is the height of a triangle with an area of 48m and a base of 16m?

6m

500
Find Circumference when Radius = 75
471.24
500

If a parallelogram has an area of 24cm, and a base of 6cm, what is its height?

4cm

500

2s + 19 = 47   What is s?

14

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