1)In a morning assembly students are arranged in the square form.if there are 25 students in each row,find the number of students assembled in the ground.
2)the length of a square pond is 30m.find its area.
3)when a certain number of children are arranged in a square ground,there are 14 children along the breadth.how many more children are needed to arrange 15 children along the length and the breadth?
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Answer:
b) perimeter of circle = 30
2πr= 30
r=30*7/2*22
r=15*7/22
r=105/22
r= 4.7 cm
therefore area is πr²
22/7*47/10*47/10
area = 69.42m²
Soorrry I didn't get the a and the c one
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