Question

What is the area of the shaded region
200cm2
20cm2
10cm2
190cm2

Answer 1

190 cm2.

Explanation:

First you have to find the area of the whole shape.

20 cm times 10 cm is 200 cm2.

Now, you have to find the area of the smaller shape inside.

5 cm times 2 cm = 10 cm2.

Finally, you subtract the area of the smaller shape from the larger shape to find the area of the shaded area.

200 cm2 - 10 cm2 = 190 cm2.

Answer 2

`190cm^(2)`

Explanation:

To work this out you would first need to find the area of the orange rectangle.

The formula to find the area of a rectangle is length multiplied by the width.

To find the area of the orange rectangle you would need to multiply 10 by 20, this gives you 200 cm squared. Then the next step is to work out the area of the white rectangle. To find the area of the white rectangle you would need to multiply 2 by 5, which gives you 10 cm squared. After you would need to minus the area of the white rectangle from the area of the orange rectangle.

1) Find the area of the orange rectangle.

`10*20=200cm^(2)`

2) Find the area of the white rectangle.

`2*5=10cm^(2)`

3) Then minus the area of the white rectangle from the orange rectangle.

`200-10=190cm^(2)`