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3 years ago

13

The round base of a copper tea kettle has a diameter of 18 centimeters. What is the base's circumference?

1 answer:

iris [78.8K]3 years ago

7 0

Answer:

Step-by-step explanation:

circumference = π×diameter = 18π cm

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In trapezoid ABCD with bases AB and DC , diagonals intersect at point O. Find the length of diagonal BD , if BO=6 cm and: AO/OC

aalyn [17]

Answer:

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Step-by-step explanation:

... BO/OD = AO/OC = 3/1

Written another way, this is ...

... OD : BO = 1 : 3

Now, BD = OD + BO, so we have

... BD : BO = (OD +BO) : BO = (1 +3) : 3 = 4 : 3

That is, BD = 4/3 × BO

... BD = 4/3 × 6 cm = 8 cm

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