## marcoduuuh Group Title Can somebody please check my work? - Giving medals. (; (Picture below.) one year ago one year ago

1. marcoduuuh Group Title

2. Shane_B Group Title

I think you're a bit confused. The area of a right triangle is 1/2 base * height which you already know. The problem only gives you the hypotenuse and the base. You need to calculate the height before calculating the area. You can use the Pythagorean theorem to calculate the height pretty easily.

3. marcoduuuh Group Title

Both of them are wrong?

4. Shane_B Group Title

Yes, both are wrong. The height in the first one does come out to be 7.14 though...but you have then calculate the area.

5. marcoduuuh Group Title

Alright. So for the first one, A=1/2(7.14) times what? 15 or 9?

6. Shane_B Group Title

For the first one: $a^2+b^2=c^2$$7^2+b^2=10^2$$b^2=51$$b=7.14$ $A=\frac{1}{2}(7)(7.14)=?$The second one is answered the same way

7. marcoduuuh Group Title

Where do you get 7?

8. Shane_B Group Title

The first problem states that the leg (base) length is 7.

9. marcoduuuh Group Title

Nvm, I got confused. Sorry.

10. marcoduuuh Group Title

So for the first one: A=599.76

11. Shane_B Group Title

Did you put the above in a calculator? That's not even close :/

12. Shane_B Group Title

You should get an area of ~25

13. marcoduuuh Group Title

Oh wait! I put it in wrong, I got Area=24.99

14. Shane_B Group Title

That's correct :) Now just do the second one the same way

15. marcoduuuh Group Title

For the second one, I used the Pythagorean theorem and I got B=13.6015?

16. marcoduuuh Group Title

Btw thank for all the help and patience! @Shane_B

17. Shane_B Group Title

Neverming..windows calculator mistake. Yep, that's correct.

18. marcoduuuh Group Title

Okay so now, the answer should be A=142.8158?

19. marcoduuuh Group Title

@Shane_B

20. Shane_B Group Title

The base of the triangle is 16 and you calculated the height to be 13.6015. So the area should be:$A=\frac{1}{2}bh=\frac{1}{2}(16)(13.6015)=108.812$

21. marcoduuuh Group Title

Oh! That's what I did wrong. I used 21 instead of 16. Thank you so much.

22. Shane_B Group Title

np :)