Answer:
1. Area of circular fountain A=
A = 3.14(5m x 5m)
A = 3.14 x 25sq.m
A = 78.5sq.m
Area of circular park = A=
A = 3.14(70m x 70m)
A = 3.14 x 4900sq.m
A = 15386 sq.m
Walking Area = Area of circular park - Area of circular fountain
Walking Area = 15386 sq.m - 78.5 sq.m = 15307.5 sq.m
Walking Area = 15307.5 sq.m
2. Circumference = 2
C = 2 ( 3.14 x 4.5 m)
C = 2(14.13 m)
C = 28.26 m materials needed to put a fence
Area =
A = 3.14(4.5m x 4.5m)
A = 3.14 x 20.25sq.m
A = 63.585sq.m area of the pond
3. A =
A = 3.14 (150 cm x 150cm)/4
A = 3.14 x 22500 sq.cm/4
A = 70650 sq.cm/4
A = 17662.5 sq.cm
4. A =
r = 48dm to meters
10 dm = 1 m
48dm x 1m/10dm = 4.8 m
r = 4.8 m
A = 3.14 (4.8m x 4.8m)
A = 3.14 x 23.04 sq.m
A = 72.35 sq.m materials she needed
5. C = 75 cm
r = C/2
r = 75cm/2(3.14)
r = 75cm/6.28
r = 11.94 cm
A =
A = 3.14 (11.94cm x 11.94cm)
A = 3.14 x 142.56 sq.cm
A = 447.64 sq.cm area occupied by the clock
hope it helps, pa heart at brainliest naman :)
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Answers & Comments
Answer:
1. Area of circular fountain A=![\pi r^{2} \pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
A = 3.14(5m x 5m)
A = 3.14 x 25sq.m
A = 78.5sq.m
Area of circular park = A=![\pi r^{2} \pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
A = 3.14(70m x 70m)
A = 3.14 x 4900sq.m
A = 15386 sq.m
Walking Area = Area of circular park - Area of circular fountain
Walking Area = 15386 sq.m - 78.5 sq.m = 15307.5 sq.m
Walking Area = 15307.5 sq.m
2. Circumference = 2![\pi r \pi r](https://tex.z-dn.net/?f=%5Cpi%20r)
C = 2 ( 3.14 x 4.5 m)
C = 2(14.13 m)
C = 28.26 m materials needed to put a fence
Area =![\pi r^{2} \pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
A = 3.14(4.5m x 4.5m)
A = 3.14 x 20.25sq.m
A = 63.585sq.m area of the pond
3. A =![\pi d^{2} /4 \pi d^{2} /4](https://tex.z-dn.net/?f=%5Cpi%20d%5E%7B2%7D%20%2F4)
A = 3.14 (150 cm x 150cm)/4
A = 3.14 x 22500 sq.cm/4
A = 70650 sq.cm/4
A = 17662.5 sq.cm
4. A =![\pi r^{2} \pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
r = 48dm to meters
10 dm = 1 m
48dm x 1m/10dm = 4.8 m
r = 4.8 m
A = 3.14 (4.8m x 4.8m)
A = 3.14 x 23.04 sq.m
A = 72.35 sq.m materials she needed
5. C = 75 cm
r = C/2![\pi \pi](https://tex.z-dn.net/?f=%5Cpi)
r = 75cm/2(3.14)
r = 75cm/6.28
r = 11.94 cm
A =![\pi r^{2} \pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
A = 3.14 (11.94cm x 11.94cm)
A = 3.14 x 142.56 sq.cm
A = 447.64 sq.cm area occupied by the clock
hope it helps, pa heart at brainliest naman :)