## anonymous one year ago Can someone help please idk how to do this

1. anonymous

2. anonymous

are you familiar with pythagorean?

3. anonymous

Is that the a^2 +b^2 =c^2 ? if not then I don't think I am

4. anonymous

that's right

5. anonymous

So we have 2 triangles to solve for in this problem

6. anonymous

Okay how do I do it?

7. anonymous

|dw:1433037507610:dw|

8. anonymous

find x

9. anonymous

4^2 +x^2 =10^2 $\sqrt{(10+a)(10-a)}$

10. anonymous

right or wrong?

11. anonymous

uhhh x^2 = 84 x=sqrt(84)

12. anonymous

Ohh my bad... is that all it?

13. anonymous

|dw:1433037822243:dw|

14. anonymous

Do you remember the formula for the area of a triangle?

15. anonymous

A=1/2Base * height

16. anonymous

correct. What is the area of that triangle

17. mathmate

|dw:1433037922613:dw|

18. anonymous

24?

19. mathmate

How did you get that?

20. anonymous

Can you put it in an equation for me please I messed up

21. mathmate

Equation was shown on the drawing! :)

22. anonymous

ooh okay so the base it 12 right so 1/2 *12 *4 4 is the height right?

23. mathmate

ok, I'll spare you the torture this time. You were right, but I want to check if your are confident of your calculations. Yes, the area is 24... what unit? was my real question.

24. anonymous

Ohh u are so silly ahhah the unit is 24yd^2 right

25. mathmate

Yes, good work! :)