Area of rectangles and triangles

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

If a rectangle has a length of 10cm and a width of 4cm, what is its area?

Back

40cm²

Front

If a triangle has a base of 6cm and a height of 5cm, what is its area?

Back

15cm²

Front

What is the area of a square with a side length of 6cm?

Back

36cm²

Front

How do you find the missing side of a rectangle if the area is known?

Back

Divide the area by the known side length.

Front

What is the area of a rectangle with an area of 80cm² and a width of 20cm?

Back

4cm (length = area/width)

Front

What is the area of a triangle with a base of 8cm and a height of 3cm?

Back

12cm²

Front

If the area of a rectangle is 56cm² and the length is 7cm, what is the width?

Back

8cm (width = area/length)

Front

What is the area of a rectangle with a length of 12cm and a width of 5cm?

Back

60cm²