Page 347 - Math Smart - 7

Check My
Understanding

O This composite figure is made up of a square and a rectangle.
10 cm
Find the area of the figure.

12 cm 12 cm
8 cm

O Calculate the area of this 4 cm
compound shape.

5 cm
Use the length on the other
8 cm
side to calculate this missing
side length like this:
8 cm - 5 cm = 3 cm

10 cm
O Find the length of the missing sides and then calculate the perimeter and area of each composite figure
a) b) c)
7 m
in rm C
M > ■4 ^

2 cm e
4 cm
7 cm 5 cm 5 cm 6 m 5 m
d

3 cm
4 m
4 cm
a = c = . e =

b = d = f =
Perimeter = Perimeter = Perimeter =

Area = Area = Area =

O Calculate the perimeter and area of these compound shapes.
a) b)
7 cm 8 cm
9 cm
2 cm
8 cm
11 cm 7 cm
4 cm 4 cm

13 cm 12 cm
10 cm

Perimeter = Perimeter = Perimeter =

Area = Area = Area =