Perimeter and area of Combined shapes

To find the perimeter of this L-shaped room Think about What else is needed? 6 m 5 m 3 m 2 m 3 m Perimeter = 3 + 2 + 3 + 3 + 6 + 5 = 22m

To find the area of this L-shaped room Think about How can we do this? 7 m 5 m 3 m 2 m 4 m A B Area of A = 5 × 3 = 15 m2 Area of B = 3 × 4 = 12 m2 Total area = + 12 = 27 m2 15

To find the area of this L-shaped room Another way 7 m 5 m 3 m 2 m 4 m A B Area of A = 3 × 2 =6 m2 Area of B = 7 x 3 = 21 m2 Total area = + 21 = 27 m2 6

Find the area of the shape Solution: The above shape can be splitted as Rectangle and triangle as shown below

 

TRY THESE Find the perimeter and Area of the below shapes