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4 years ago

D) equilateral

Mathematics

1 answer:

maksim [4K]4 years ago

6 0

Answer:

The length of side JK is 4.7 units.

Step-by-step explanation:

Given:

Δ JKL is an Isosceles Triangle.

JL = 5x - 0.2

KL = x + 3.2

JK = 4x - 1.3

To Find:

The length of side JK = ?

Solution:

Δ JKL is an Isosceles Triangle. ......Given

JK = KL .........................Given

Substituting the given values we get

$4x-1.3=x+3.2\\\\4x-x=3.2+1.3\\\\3x=4.5\\\\x=\frac{4.5}{3} \\\\x=1.5$

Now substituting 'x' in JK we get

$l(JK)=4(1.5)-1.3\\\\\therefore l(JK)=4.7\ units$

The length of side JK is 4.7 units.

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