Please help....?

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1 Answer
Mar 28, 2018

x = #40/3# , or #13##1/3#

Explanation:

This is a similar triangle problem. You can assume that the triangle with sides 6cm, 8cm and y, is proportionally similar to the triangle with sides (6cm + 4 cm), x & z.

One setup is as follows:

#6/8 = 10/x#

then

#6x = 80#

then

#x = 80/6 = 40/3 = 13##1/3#