Question

Not sure how to solve this (20 points) Serious answers only :)

Answer 1

The formula of an area of a rectangular triangle:


`A=(ab)/(2)`
a, b - a leg

`A=(5\cdot12)/(2)=(60)/(2)=30\ mi^2\\\\A=(13\cdot x)/(2)`
We have the equation:

`(13x)/(2)=30\ \ \ |\cdot2\\\\13x=60\ \ \ |:13\\\\x=(60)/(13)\\\\x\approx4.6\ mi`

Answer: 4.6 mi