The circumference of the circle exceed diameter by 60cm find area of circle
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2
2πr = d + 60
2 *22*r/7 = 2r + 60
44*r = 14r + 420
30r = 420
r = 140 cm
Area
22* r * r / 7
= 22*140*140/7
= 61600 cm²
Answered by
0
Answer:
area of the circle is 616 cm sq
Step-by-step explanation:
circumference of the circle = 2 pie r ( 2 * 22/7 * r)
r = radius
2*r = diameter
therefore,
circumference = 22/7 * d = 22d /7
also given,
circumference = 60 + d
therefore,
60+d = 22d/7
60 = 22d/7 - d
60 = 22d-7d/7
60 = 15d/7
60*7 = 15d
60 * 7 / 15 = d
7* 4 = d
d = 28 cm
radius = 28/2
= 14 cm
area f a circle = pie (radius) sq
= 22/7 * 14 * 14
= 616 cm sq
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