Find the surface area of the solid shown or described. If necessary, round to the nearest tenth. Use the formula, write it out,
take your time. please help.
1 answer:
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Answer:
LN = 66 cm
Step-by-step explanation:
The 3 parallel lines divide the 2 sides they intersect in proportion, that is
=
, substitute values
=
( cross- multiply )
15LM = 315 ( divide both sides by 15 )
LM = 21
Hence
LN = LM + MN = 21 + 45 = 66 cm