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I am Lyosha [343]
3 years ago
5

One side of a triangle is half the longest side. The third side is 8 meters less than the longest side. The perimeter is 47 mete

rs. Find all three sides.
Mathematics
1 answer:
Alik [6]3 years ago
8 0
<span>One side of a triangle is half the longest side. The third side is 8 m less than the longest side
Let x,x/2 and (x-8m) represent these sides
</span>

x + x/2 + (x-8m) = 42m
Solving for x
5/2x = 50m
x = 20m, the longest side. The other two are 10m and 12m
Three sides are: 10m,12m and 20m

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Arte-miy333 [17]

Answer:

a. LK = 4√3, JL= 4√6

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Step-by-step explanation:

a. LK =4√3,

LK=KJ= 4√3

sin(45°) = opposite/hypotenuse

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b.

cos 30° = adjacent/hypotenuse = QR/PQ = 15/PQ

cos 30° = 15/PQ

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tan 30° = opposite/adjacent = RP/QR

√3/3 = RP/QR

√3/3 = RP/15

RP = √3*15/3 = 5√3

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