length and breadth of a room, if their ratio is 10:6 and cost of 15 per metre. TH (15) The side of a square flower bed is 1 m 80 cm long. It is enlarged by digging a strip 20 cm wide all around it. Find the area of the enlarged flower-bed and also the increase in area of the flower bed.
Answers
Answer:
The area of the enlarged flower bed =is 4.84 sq.m. and increase in the area is 1.6 sq.m.
Step-by-step explanation:
The side of a square flower bed is 1m 80cm long
1 m = 100 cm
80 cm = \frac{80}{100}
100
80
80 cm = 0.8 m
So, the side of a square flower bed is 1.8 m
Area of square bed = Side^2 = 1.8^2 = 3.24 m^2Side
2
=1.8
2
=3.24m
2
Now we are given that it is enlarged by digging a strip 20cm wide all around it
1 m = 100 cm
20 cm = \frac{20}{100}
100
20
20 cm = 0.2 m
So, new side = 1.8+0.2+0.2 =2.2 m
Area of enlarged flower bed = Side^2 = 2.2^2 = 4.84 m^2Side
2
=2.2
2
=4.84m
2
Increase in the area of the flower bed = 4.84-3.24 = 1.6 sq.m.
Hence the area of the enlarged flower bed =is 4.84 sq.m. and increase in the area is 1.6 sq.m.
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Answer:
Answer:
The area of the enlarged flower bed =is 4.84 sq.m. and increase in the area is 1.6 sq.m.
Step-by-step explanation:
The side of a square flower bed is 1m 80cm long
1 m = 100 cm
80 cm = \frac{80}{100}
100
80
80 cm = 0.8 m
So, the side of a square flower bed is 1.8 m
Area of square bed = Side^2 = 1.8^2 = 3.24 m^2Side
2
=1.8
2
=3.24m
2
Now we are given that it is enlarged by digging a strip 20cm wide all around it
1 m = 100 cm
20 cm = \frac{20}{100}
100
20
20 cm = 0.2 m
So, new side = 1.8+0.2+0.2 =2.2 m
Area of enlarged flower bed = Side^2 = 2.2^2 = 4.84 m^2Side
2
=2.2
2
=4.84m
2
Increase in the area of the flower bed = 4.84-3.24 = 1.6 sq.m.
Hence the area of the enlarged flower bed =is 4.84 sq.m. and increase in the area is 1.6 sq.m