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प्रश्न
Karunya bought three fields.
Find the area of all three fields.
- Field (A) ____________ square metre.
- Field (B) ____________ square metre.
- Field (C) ____________ square metre.
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उत्तर
Area of field A:
Area of rectangle
= Length × Breadth
= 28 × 27
= 756 square m
28
× 27
196
+ 560
756
Area of field B:
Area of rectangle
= Length × Breadth
= 36 × 12
= 432 square m
36
× 12
72
+ 360
432
Area of field C:
Area of rectangle
= Length × Breadth
= 27 × 19
= 513 square m
27
× 19
243
+ 270
513
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In the below fig. OCDE is a rectangle inscribed in a quadrant of a circle of radius 10 cm. If
OE = 2√5, find the area of the rectangle.
ABCD is a parallelogram whose diagonals intersect at O. If P is any point on BO, prove
that: (1) ar (ΔADO) = ar (ΔCDO) (2) ar (ΔABP) = ar (ΔCBP)
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that ar (Δ PQE) = ar (ΔCFD).
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A, B, C, D are mid-points of sides of parallelogram PQRS. If ar (PQRS) = 36 cm2, then ar (ABCD) =
Medians of ΔABC intersect at G. If ar (ΔABC) = 27 cm2, then ar (ΔBGC) =
In a ΔABC if D and E are mid-points of BC and AD respectively such that ar (ΔAEC) = 4cm2, then ar (ΔBEC) =
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Find the area of a rectangle whose length = 3.6 m breadth = 90 cm
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What is the area of the rectangle? ________ square cm
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Look at the table. If you were to write the area of each of these which column would you choose? Make a (✓).
| Square cm |
Square meter |
Square km |
|
| Handkerchief | ✓ | ||
| Sari | |||
| Page of your book | |||
| School land | |||
| Total land of a city | |||
| Door of your classroom | |||
| Chair seat | |||
| Blackboard | |||
| Indian flag | |||
| Land over which a river flows |
The King was very happy with carpenters Cheggu and Anar. They had made a very big and beautiful bed for him. So as gifts the king wanted to give some land to Cheggu, and some gold to Anar. Cheggu was happy. He took 100 meters of wire and tried to make different rectangles.
He made a 10 m × 40 m rectangle. Its area was 400 square meters. So he next made a 30 m × 20 m rectangle.
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Find the area of the following figure by counting squares:
Find the area of the following figure by counting squares:
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Which statement correctly describes how area is determined?
