4.6 cm .What is the circumference of the circle if the radius is increased by 2,5cm.
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4.6 cm .What is the circumference of the circle if the radius is increased by 2,5cm.
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Answer:
Ang formula para sa circumference ng isang bilog ay:
C = 2πr
Kung ang radius ng bilog ay 4.6 cm, ang circumference nito ay:
C = 2πr C = 2 x π x 4.6 C = 28.92 cm (rounded to two decimal places)
Kung dagdagan natin ang radius ng 2.5 cm, ang bagong radius ay magiging:
r = 4.6 + 2.5 r = 7.1 cm
Upang malaman ang bagong circumference, gagamitin natin ulit ang formula para sa circumference:
C = 2πr C = 2 x π x 7.1 C = 44.62 cm (rounded to two decimal places)
Kaya ang circumference ng bilog ay 44.62 cm kung ang radius ay dadagdagan ng 2.5 cm.