Find the radius of a circle whose area is equal to the sum of areas of three circles with radii 8 cm, 9 cm, 12 cm respectively.
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Answered by
7
Hii friend,
RADIUS OF FIRST CIRCLE (R1) = 8 CM
RADIUS OF SECOND CIRCLE (R2) = 9 CM
RADIUS OF THIRD CIRCLE (R3) = 12 CM
THEREFORE,
AREA OF THE BIGGEST CIRCLE = π(R1)² + π(R2)² + π(R3)² = π[(R1)² + (R2)² + (R3)²
= 22/7 × [(8)² + (9)² + (12)²]
= 22/7 × [ 64 + 81 + 144]
= 22/7 × 289
= 22 × 47 = 1034 CM² .
HENCE,
THE AREA OF THE BIGGEST CIRCLE = 1034 CM².
HOPE IT WILL HELP YOU.... :-)
RADIUS OF FIRST CIRCLE (R1) = 8 CM
RADIUS OF SECOND CIRCLE (R2) = 9 CM
RADIUS OF THIRD CIRCLE (R3) = 12 CM
THEREFORE,
AREA OF THE BIGGEST CIRCLE = π(R1)² + π(R2)² + π(R3)² = π[(R1)² + (R2)² + (R3)²
= 22/7 × [(8)² + (9)² + (12)²]
= 22/7 × [ 64 + 81 + 144]
= 22/7 × 289
= 22 × 47 = 1034 CM² .
HENCE,
THE AREA OF THE BIGGEST CIRCLE = 1034 CM².
HOPE IT WILL HELP YOU.... :-)
Answered by
0
Answer:
RADIUS OF FIRST CIRCLE (R1) = 8 CM
RADIUS OF SECOND CIRCLE (R2) = 9 CM
RADIUS OF THIRD CIRCLE (R3) = 12 CM
THEREFORE,
AREA OF THE BIGGEST CIRCLE = π(R1)² + π(R2)² + π(R3)² = π[(R1)² + (R2)² + (R3)²
= 22/7 × [(8)² + (9)² + (12)²]
= 22/7 × [ 64 + 81 + 144]
= 22/7 × 289
= 22 × 47 = 1034 CM² .
HENCE,
THE AREA OF THE BIGGEST CIRCLE = 1034 CM².
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