the area of a circle is 220 cm find the area of a square whose vertices are on the circle.
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Area of square=140cm^2
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diameter = diagonal of sq.
area of circle = πr^2
220 = (22/7) ×r^2
r^2 = 70
r = √70
d = 2r
d = 2√70
now d = √2×a (a = side of sq.)
2√70 = √2×a
a = √2 × √70
a = √140
Area of square = a^2
= 140 sq. units
area of circle = πr^2
220 = (22/7) ×r^2
r^2 = 70
r = √70
d = 2r
d = 2√70
now d = √2×a (a = side of sq.)
2√70 = √2×a
a = √2 × √70
a = √140
Area of square = a^2
= 140 sq. units
Gaurav20011:
i can't understand after 2 para
from" now d"
d = diameter
drw its figure once and u will understand!
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