The radius of a circular garden is 84m. inside it there is a 7 metre wide road along its circumference. find the area of this road
Answers
Solution :
Radius of circular garden : 84 m
Width of the road along the circumference of the garden: 7 m
Remaining radii : 77 m
To find : Area of Road
=> Total Area of circular garden - Area of circular garden excluding the road
=> T ( 84 )? - T (77)2
=> TT x ( 161) x 7
=> 22 x 161
=> 3542 m2 .
Answer: The required area of this road is 3542 m2.
Additional Information :
Area of a circle - a r?
Circumference of a circle : 2 ur
Area of a semi circle : ( 180/360) TTr?
Circumference of semi circle : IT r.
Explanation:
Radius of circular garden : 84 m
Width of the road along the circumference of the garden : 7 m
Remaining radii : 77 m
To find : Area of Road
=> Total Area of circular garden - Area of circular garden excluding the road
( 84 - TT ( 77)2
22/7 x 161 7
22 x 161
3542 m2
Answer : The required area of this road is
3542 m2 .