Question

What is the answer??

Answer 1

HK = 20

Explanation:

LM = (1/2) HK {Mid point theorem}

`10x - 90 = (1)/(2)(10x - 80) \\`

2*(10x - 90) = 10x - 80

2*10x - 2*90 = 10x - 80

20x - 180 = 10x - 80 {add 180 to both sides}

20x = 10x - 80 + 180

20x = 10x +100 {Subtract 10x from both sides from }

20x -10x = 100

10x = 100

x = 100/10

x = 10

HK = 10x - 80

= 10*10 - 80

= 100 - 80

= 20