Can someone please help me with these two problems. As soon as you can would be nice.

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TheAustinB TheAustinB

04-04-2017
Mathematics

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Can someone please help me with these two problems. As soon as you can would be nice.

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find the circumference of a circle whose radius is 15.4cm

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find the circumference of a circle whose radius is 15.4cm

Аноним Аноним · Answer 1 · 2017-04-04T15:10:13+02:00

Аноним Аноним

04-04-2017

39)
x+x+15+15 = 37.5
2x+30=37.5
2x= 7.5
x = 3.75

answer: width = 3.75 ft

40)
let's x = lenth

2x + 2(27/4) = 37.5
2x + 13.5 = 37.5
2x = 24
x = 12

length = 12 ft, width = 27/4 ft

A = 12 . 27/4
A = 81 square feet

answer: 81 square feet will be needed.

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