The missing areas and dimensions of the given squares, rectangles, and triangles are:
2. 36 cm²
3. 21 cm²
4. 9 cm²
5. 5 cm
6. 10 cm
7. 4 cm
8. 8 cm
9. 7 cm
10. 7
11. 10
What is the Area of a Square, Rectangle, and a Triangle?
Area of a square = s²
Area of a rectangle = (length)(breadth)
Area of a triangle = 1/2(base)(height).
2. Area of square = s² = 6² = 36 cm².
3. Area of a rectangle = (length)(breadth) = (3)(7) = 21 cm².
4. Area of a triangle = 1/2(base)(height) = 1/2(3)(6) = 9 cm².
5. Area of a rectangle = (length)(breadth)
60 = (12)(breadth)
Breadth = 60/12
Breadth = 5 cm.
6. Area of a triangle = 1/2(base)(height)
35 = 1/2(7)(height)
Height = (35)(2)/7
Height = 10 cm
7. Area of a square = s²
16 = s²
s = √16
s = length = 4 cm
8. Area of a triangle = 1/2(base)(height)
40 = 1/2(10)(height)
Height = 40/5
Height = 8 cm.
9. Area of a square = s²
49 = s²
s = √49
s = length = 7 cm
10. Area of a rectangle = (length)(breadth)
84 = (12)(breadth)
Breadth = 84/12
Breadth = 7 cm.
11. Area of a triangle = 1/2(base)(height)
35 = 1/2(7)(height)
Height = 70/7
Height = 10 cm.
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