## anonymous 5 years ago x = , y =

1. anonymous

2. anonymous

whole large triangle has sides 5, 13 and by pythagoras other side is 12. Whole triangle is similar to small upper triangle so $\frac{y}{13}=\frac{5}{12}$ or $y=\frac{13 \times 5}{12}=\frac{65}{12}$

3. anonymous

4. anonymous

i just got 5.4

5. anonymous

x you find as follows. You know that side containing x is 12. you can find the missing piece since you know two sides of that right triangle with side 5 and hypotenuse 5.4 (rounded) so it is $\sqrt{5.4^2-5^2}=\sqrt{4.16}=2.04$ subtract from 12 to get 9.96

6. anonymous

how do got 12 as x

7. anonymous

x is not 12. the long side of which x is a portion is 12. that is because the large triangle is a right triangle and you know the length of one side (5) and the hypotenuse (13) so you know $5^2+ s^2=13^3$ $s^2=13^2-5^2$ $s=\sqrt{13^2-5^2}=\sqrt{136-25}=\sqrt{144}=12$