Uc34758
30.03.2020 •
Mathematics
The radius of a circular candle is 5 mm. If I want to attach a ribbon to the outside, how much ribbon do I need?
A)78.5 mm
B) 15.7 mm
C) 314 mm
D) 31.4 mm
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Ответ:
B
Step-by-step explanation:
5 x 2 = diameter
10 x 3.14 (pie)
= 31.4 = D
Ответ:
Using the Pythagorean theorem