Find the length of the third side of the right triangle.
side one = 4
Hypotenuse = 5
a. x = √33
b. x = 3
c. x = √65 - 3
d. x = 3 -1
2007-12-27 10:21:28 · 4 answers · asked by . 1 in Science & Mathematics ➔ Mathematics
It's b. x = 3. The 3-4-5 right triangle is rather famous. You'll see it a lot. You can prove this with the Pythagorean Theorem: a^2 + b^2 = c^2. Here's it's 3^2 + 4^2 = 5^2, which means 9+16=25.
that's it! :)
2007-12-27 10:26:30 · answer #1 · answered by Marley K 7 · 0⤊ 0⤋
Pythagorean theorem states that a^2 + b^2 = c^2, where a and b are sides of the right triangle, and c is the hypothenuse
So we get
a^2 + b^2 = c^2
(4)^2 +b^2 = (5)^2
16 +b^2 = 25
b^2 = 25-16
b^2 = 9
b= 3
[Answer: B]
2007-12-27 18:26:36 · answer #2 · answered by ¿ /\/ 馬 ? 7 · 0⤊ 0⤋
b. x = 3 is the answer, since 3-4-5 is a Pythagorean triple.
2007-12-27 18:25:22 · answer #3 · answered by sahsjing 7 · 0⤊ 0⤋
a^2 + b^2 = c^2 (c=Hypotenuse)
--> (third side)^2 = 25 - 16 = 9 --> b is the answer
2007-12-27 18:26:29 · answer #4 · answered by tinhnghichtlmt 3 · 0⤊ 0⤋