Year 8 Unit A - Measures perimeters and areas

4 cm = ___mm

• 400
• 40
• 4
• 4,000

Tags

CCSS.2.MD.A.2

12m = ___mm

• 12,000
• 120
• 1,200
• 120,000

Tags

CCSS.2.MD.A.2

Find the area.

• 0.63

• 6.3

• 0.72

• 0.504

Select the correct formulae for circumference of a circle? (more than one)

•  $c=\pi r^2$  

•  $c=2\pi r$  

•  $c=\pi d$  

•  $c=2\pi d$  

What is the area of this circle to 2d.p.? You can use a calculator

• 62.59

• 113.1

• 19.81

• 28.27

What is the area of a circle with the diameter of 10cm? Use a calculator

• 66cm

• 78.5cm

• 66.5cm

• 10m

A boat travels at 22 km/hr for 10 hrs, what distance will it travel?

• 220 miles
• 2.2 km
• 220 km
• 22 km

Tags

CCSS.6.RP.A.3B

A body with a mass of 50g has a volume of 2cm³. What is its density?

• 52

• 25 g

• 25 g/cm³

• 48 g/cm³

Tags

CCSS.HSG.MG.A.2

Which of these is a correct formula? (more than one)

•  $speed\ =\ dis\tan ce\ x\ time\$ 

•  $dis\tan ce\ =\ speed\ x\ time$ 

•  $speed=\frac{dis\tan ce}{time}$ 

•  $time=\frac{speed}{dis\tan ce}$ 

Tags

CCSS.7.RP.A.3

A force of 40 N acts over an area of 8 cm². What is the pressure?

• 48

• 5 N/cm²

• 50 N

• 5