how can i tell if a tringle is right tringle just by looking at the lengths of the legs and hipotanuse. HELP ME PLEASE
2006-12-21 08:29:06 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
If the legs are A and B and the hypotenuse is H,
A² + B² = H²
If this equation is true, it is a right triangle.
2006-12-21 08:31:21 · answer #1 · answered by computerguy103 6 · 1⤊ 0⤋
The square of the length of the hypotenuse equals the sum of the squares of the other two leg lengths ONLY in a right triangle. So if that equation works, it's right, otherwise, it's not.
2006-12-21 16:31:57 · answer #2 · answered by hslayer 3 · 0⤊ 0⤋
Add the squares of the two shorter sides' (legs') lengths. If that number is equal to the square of the length of the longest side (hypotenuse) , it is a right triangle (Converse of the Phythagorean Theorem).
2006-12-21 16:32:17 · answer #3 · answered by menezes_dean 2 · 0⤊ 0⤋
If the sides are known the sum of the squares of the legs will equal the square of the hypotenuse in a right triangle, and not in any other.
2006-12-21 17:37:50 · answer #4 · answered by rhino9joe 5 · 0⤊ 0⤋
Assuming you know the lengths of all the three sides accurately(call them A, B and C).
Calculate the squares of A, B and C (i.e. AxA, BxB and CxC ).
Then if it is a right angle triangle and your measurements are accurate, one of the following relations will be true:
(AxA) + (BxB) = CxC, or
(AxA) + (CxC) = BxB, or
(BxB) + (CxC) = AxA,
If one of the above three relation is tue, then it is a right angle triangle and the side on the right side of the equation is the hyptenuse (the longest of the three sides)
2006-12-21 16:43:37 · answer #5 · answered by Ottawan-Canada 3 · 0⤊ 0⤋
well first of all, the right angle should have one of those squares at the bottom, but if not, the opposite angles together should add up to 90°
2006-12-21 16:58:14 · answer #6 · answered by Philippa 2 · 0⤊ 0⤋
right triangle has this property
a^2 + b^2 = c^2
c is the hipotanuse
2006-12-21 16:32:19 · answer #7 · answered by Cu Den 2 · 0⤊ 0⤋
Pythagorean theorem: a2 + b2 = c2
Legs are: a & b
Hypotenuse is: c
2 stands for squared
2006-12-21 16:32:00 · answer #8 · answered by mijimaster 2 · 0⤊ 0⤋
use pythagoreans theroem... if a^2+b^2=c^2 than its a right triangle
2006-12-21 16:31:28 · answer #9 · answered by grateful_dead_head326 1 · 0⤊ 0⤋
hypothenuse^2=side 1^2+side2^2
2006-12-21 16:31:28 · answer #10 · answered by Anonymous · 0⤊ 1⤋