In your classroom there are two doors and four square sized windows. Length and breadth of each door is 2 m and 1 m respectively. Length of each window is 100 cm. Find the total area of doors and windows present in the room.
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★ Given:
A classroom contains 2 doors of length 2m and breadth 1m.
It also has 4 windows of length 100 cm.
★ To Find:
The total area of doors and windows present in the classroom.
★ Solution:
Area of 1 door
Length = 2m
Breadth = 1m
Area of a rectangle = lb
= 2 x 1 = 2m²
So total area of 2 doors = 2 x 2 = 4 m²
Area of 1 window
Length of one side = 100 cm = 1 m
Area of a square = a²
= 1 x 1
= 1 m²
So area of 4 square windows = 4 x 1 = 4 m².
Therefore:
Total area of windows and doors in the class room = 4 + 4
= 8 m²
★ Formulae Used
→ Area of a rectangle = lb
→ Area of a square = a²
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