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The longest length would be the hypotenuse. You can use SOHCAHTOA to find the length.

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Q: What is the length of the longest side in an isosceles right triangle?
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What is the formula for finding the length of any side of an isosceles right triangle?

if the triangle is isosceles right, then the sides' length are : a , a and b. and you have the Pythagorean theorem : a*a +a*a =b*b so if you have the length of the longest side (b) then the two other sides' length are a=b/sqrt(2) = 0,707*b (approx) if you have the length of the 2 same sides (a) then the longest side's length is b=a*sqrt(2) =1,414*a (approx)


What does right isosceles mean?

An isosceles triangle is a triangle that has two sides of equal length. A right triangle has an interior angle of 90 degrees. A right isosceles triangle has both characteristics. The 90 degree angle will be the angle formed by the sides of equal length.


Is the isosceles triangle is always a right triangle?

It usually is a right angle that represents an isosceles triangle but there are some cases that the right and left side are equal and the base is the one with an unequal length.


How are isosceles and scalene different?

An isosceles triangle has two sides that are equal length, and the other side would be a different length. A right triangle could be an isosceles triangle. On the other hand, a scalene triangle has all of its sides different lengths.


What is the difference between a right triangle and an isosceles triangle?

A right triangle can be an iscosceles or scalene triangle. A right triangle is a triangle that therein has one right angle and 2 acute angles. An isosceles triangle has two sides of the same length and one different.