Unit
Conversions
Perimeter
Area of Rectangles
Area of Triangles and Parallelograms
100

3.2 cm = ? mm

32mm

100

What is perimeter?

Measuring the distance around the outside of a shape.

100

What is area?

Measuring the inside surface space of a 2D (flat) shape.

100

What is the formula to calculate the area of a parallelogram?

A = B x H

200

5000mm = ? cm

500

200

Souvenir built a fence around his backyard with his dad. It was a rectangle with dimensions of 22m and 62 m. What is the perimeter?

84 m

200

What formula is used to calculate the area of rectangle?

A = L x W 

200

What is the formula to calculate the area of a triangle?

A = B x H / 2

300

700m = ? mm

70 000mm

300

To Slide 1

40 cm

300
To Slide 3

153m2

300

To Slide 6

63 m2

400

If Mrs. Ramsay walked 5 meters to get to the store, how many kilometers did she walk?

0.005 km

400

What formula can be used to calculate the perimeter of a rectangle?

P = 2(L+W)

P = 2(L) + 2(W)

400

To Slide 4

52 cm2

400

To Slide 7

56 m2

500

To run a marathon you need to run 42 kilometers. How many meters would you be running?

42 000m

500

To slide 2

360mm

500


114 cm2

500

To Slide 8

12 cm2