the area of a rectangular field is 48 metre square and one of its sides is 6 cm how long a person take to cross the field diagonally at the rate of
15 m /minute
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2
Answer:
40 seconds
Step-by-step explanation:
Area = 48 m²
length = 6 m
Find the breadth of the rectangle:
Area = Length x Breadth
48 = 6 x Breadth
Breadth = 48 ÷ 6
Breadth = 8 m
Find the length of the diagonal:
a² + b² = c²
6² + 8² = c²
c² = 6² + 8²
c² = 100
c = 10 m
Find the time needed to cross the diagonal:
speed = 15 m/min
distance = 10 m
Time needed = distance ÷ speed
Time needed = 10 ÷ 15
Time needed = 2/3 min
Convert min to seconds:
2/3 min = 2/3 x 60 seconds
2/3 min = 40 seconds
Answer: 40 seconds
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