Perimeter of a semi circle is 90m what is radius
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Given :
- Perimeter of semi-circle = 90 m.
To find :
- Radius of the semi-circle.
Solution :
- Perimeter = 90 m.
Formula Used :-
Where ,
- r = radius
According to the question,
Therefore , the radius of the semi-circle is 28.64 ( approx ) m.
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More information :-
★ Some formulas :-
• Perimeter of rectangle = 2(l+b)
• Area of rectangle = l × b
• Perimeter of square = 4 × side
• Area of square = side²
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Answered by
0
r = 28.64m.
- Perimeter of semi circle = 90m.
- Radius of the semi circle
- perimeter of semi circle = πr
πr = 90
22/7 × r = 90
r = 90 × 7/22
r = 28.64m.
perimeter of rectangle = 2(l + b)
Area of rectangle = l × b
perimeter of square = 4 × side
Area of square = side²
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