SOLUTION: Find are of Triangle STU. It is a right triangle, I don't know how to do that on here. But the 'height' is missing, the hypotenuse is 12, and the base is 4. I did a^2 + 4^2 = 12^2

Question 810599: Find are of Triangle STU. It is a right triangle, I don't know how to do that on here. But the 'height' is missing, the hypotenuse is 12, and the base is 4. I did a^2 + 4^2 = 12^2 and get a^2 + 16=144
So 144-16=128
a^2=128
is which is 8. But 8*4 is 32 and the answer key says it's 16
Found 2 solutions by Okeke_Christian, MathLover1:
Answer by Okeke_Christian(26) (Show Source): You can put this solution on YOUR website!
You may be using the formula to solve directly, and that's why the calculator is giving you the answer.
Don't forget my dear, the area of a right-angled triangle is 1/2(b x h), not b x h.
Did I get where the problem is coming from?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

the hypotenuse is , and the base is
you did ....this is correct
and you get ....also correct
now move to the right side

....find

.....exact solution
you can find approximate value

..round it

if the answer key says it's 16 , that is not correct; check and see

let's check our solution

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