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emmainna [20.7K]
3 years ago
11

Someone help please

Mathematics
1 answer:
tino4ka555 [31]3 years ago
4 0
305-35=270 (SA of 3 triangular faces)
270/3=90 (area of one face)
A=.5BH
90=.5(9)H
90=4.5H
H=20 in
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Vinvika [58]
1)

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4 years ago
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Taya2010 [7]
1)
-280 
= -14<span>π / 9
answer is B.
----------------------

2)
3</span><span>π/ 5 
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answer
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3)
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<span>
answer is
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------ * --------
  2          2<span>


</span>
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3 years ago
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evablogger [386]

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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Step-by-step explanation:

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Hope this helps!!

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