Find the missing lengths: LK=15 and KH=9, find KI and HI.

KI=11.25 and HI=6.75

Step-by-step explanation:

Consider the below figure attached with this question.

According to Pythagoras Theorem:

Use Pythagoras in triangle HKL

Taking square root on both sides.

Let length of HI be x.

LI = 12+x

Use Pythagoras theorem in ΔKLI,

Use Pythagoras theorem in ΔHKI,

From (1) and (2) we get

Hence, the measure of HI is 6.75 units.

Substitute x=6.75 in equation (2).

Taking square root on both sides.

Hence, the measure of KI is 11.25 units.

320ft

step-by-step explanation:

120 divided by 3 equals 40

40 times 4=160

160 times 2=320