Find the area of a rectangular slab of dimension 180 cm by 60 cm
Find the area of a circle whose radius is equal to 37 mm
with formulas
Answers
Question :
- Find the area of a rectangular slab of dimension 180 cm by 60 cm.
Given :
- Length of Slab = 180cm
- Breadth of Slab = 60cm
To Find :
- Area of Rectangular Slab.
Formula :
- Area = Length × Breadth
Solution :
- Area = Length × Breadth
- Area = 180 × 60
- Area = 10,800cm²
Thus Area of Rectangular Slab is 10,800cm²
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Question :
- Find the area of a circle whose radius is equal to 37mm
Given :
- Radius of Circle = 37mm
To Find :
- Area of Circle
Formula :
- Area of Circle = πr²
Solution :
- Area = πr²
- Area = 22/7 × (37)²
- Area = 22/7 × 37 × 37
- Area = 22/7 × 1369
- Area = 22 × 1369 / 7
- Area = 30118 / 7
- Area = 4,302.57mm
Thus Area of Circle is 4,302.57mm
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★ Additional Info :
Formulas Related to Rectangle:
- Perimeter of Rectangle = 2( l + b)
- Area = Length × Breadth
- Length = Area / Breadth
- Breadth = Area / Length
- Diagonal = √(l)² + (b)²
Formulas Related to Circle:
- Circumference of Circle = 2πr
- Area of Circle = πr²
- Diameter of Circle = 2r
- Radius of Circle = D/2
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Question :-
Find the area of a rectangular slab of dimension 180 cm by 60 cm.
Given :-
Length of rectangular slab = 180cm
Breadth of rectangular slab = 60cm
To find :-
Area of rectangular slab.
Using formula :-
Area of rectangle = length (l) × breadth (b)
Solution:-
Length of rectangular slab = 180cm
Breadth of rectangular slab = 60cm
Area of rectangular slab = l × b
= 180cm × 60cm
= 10800cm².
Therefore,
Area of rectangular slab = 10800cm².
Question:-
Find the area of a circle whose radius is equal to 37 mm.
Given:-
Radius of circle = 37mm
To find :-
Area of circle.
Using formula :-
Area of circle = πr²
Solution :-
Radius of circle = 37mm
Area of circle = πr²
= 22/7 × (37)²
= 22/7 × 37 × 37
= 22/7 × 1369
= 30118/7
= 4302.57mm
Therefore,
Area of circle = 4302.57mm