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Tpy6a [65]
3 years ago
6

How do you work this question out at the bottom? please help?????

Mathematics
2 answers:
marysya [2.9K]3 years ago
7 0
Question Q1:
Surface area of the cone:
\pi r l + \pi  r^{2}=125 \pi /: \pi 

 rl+ r^{2}=125

5l+ 5^{2}=125

5l+25=125

5l=100

l=100:5=20  

Answer: l=20 cm.
umka2103 [35]3 years ago
6 0
Surface area of the cone:

<span>Answer: </span><span>l=20 cm.</span>
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