Find the area of a path 2m wide which surrounds a circular plot 12m in diameter About the author Charlotte
Answer: here is your answer Step-by-step explanation: (i) Area of the path =π(R 2 −r 2 ) Here, R= 2 28 +7=14+7=21 m r=21−7=14 m Area of the path =π(21 2 −14 2 ) = 7 22 ×245 =770 m 2 (ii) Area of circular path =π(R 2 −r 2 ) Here, R=20+2=22 r=22−2=20 m Area of circular path =π(22 2 −20 2 ) = 7 22 ×84 =264 m 2 Reply
Answer:
Therefore, 52.8 m3 of gravel is required to have path to a depth of 20cm.
Answer:
here is your answer
Step-by-step explanation:
(i) Area of the path =π(R
2
−r
2
)
Here,
R=
2
28
+7=14+7=21 m
r=21−7=14 m
Area of the path =π(21
2
−14
2
)
=
7
22
×245
=770 m
2
(ii) Area of circular path =π(R
2
−r
2
)
Here,
R=20+2=22
r=22−2=20 m
Area of circular path =π(22
2
−20
2
)
=
7
22
×84
=264 m
2