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Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1I 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.

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1Both of them are wrong?

Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1Yes, both are wrong. The height in the first one does come out to be 7.14 though...but you have then calculate the area.

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1Alright. So for the first one, A=1/2(7.14) times what? 15 or 9?

Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1For 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

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1Where do you get 7?

Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1The first problem states that the leg (base) length is 7.

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1Nvm, I got confused. Sorry.

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1So for the first one: A=599.76

Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1Did you put the above in a calculator? That's not even close :/

Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1You should get an area of ~25

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1Oh wait! I put it in wrong, I got Area=24.99

Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1That's correct :) Now just do the second one the same way

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1For the second one, I used the Pythagorean theorem and I got B=13.6015?

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1Btw thank for all the help and patience! @Shane_B

Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1Neverming..windows calculator mistake. Yep, that's correct.

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1Okay so now, the answer should be A=142.8158?

Shane_B
 one year ago
Best ResponseYou've already chosen the best response.1The base of the triangle is 16 and you calculated the height to be 13.6015. So the area should be:\[A=\frac{1}{2}bh=\frac{1}{2}(16)(13.6015)=108.812\]

marcoduuuh
 one year ago
Best ResponseYou've already chosen the best response.1Oh! That's what I did wrong. I used 21 instead of 16. Thank you so much.
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