Question

D) equilateral

b) scalene
C) isosceles
16. What is the length of side JK if AJKL is an isosceles triangle,
5x -0.2
tx+3.2
4x - 1.3
b) JK = 1.5
a) JK = 4.7
C) JK = 7.3
d) JK = 1.9

Answer 1

The length of side JK is 4.7 units.

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=(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.