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dalvyx [7]
3 years ago
7

Can someone help me with this I need a answer ASAP

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
8 0

C: 62.8

If this helped please give thanks and maybe mark brainliest! Thanks!

larisa86 [58]3 years ago
3 0

Answer:

62.8 mm

Step-by-step explanation:

C= 2 X pi X r = 2 X pi X 10mm = 20 pi mm = around 62.8 mm

r = d/2 = 20mm/2 = 10mm

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Step-by-step explanation:

You can work this a couple of ways. We expect you are probably expected to use trig identities.

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cos(A -B) = cos(A)cos(B) +sin(A)sin(B) = (24/25)(5/13) +(7/25)(12/13)

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__

The other way to work this is using inverse trig functions. It is necessary to carry the full calculator precision if you want an exact answer.

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