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You haven't given the units (inches or centimeters or what?) Anyway the hypotenuse is irrelevant all you need to find the area of a right angle triangle is the length of the other two sides. The formula is 1/2(W x H) = A. Which means half the width x the height gives you the area. In this case the width is 5 and the height is 12 which multiplied together gives 60 (the area of a rectangle of 5 x 12). You then need to half it to find the area of the right angle triangle and the answer is 30. Now you just need to know the units.

Q: Find the area for a right triangle with legs measuring 5 and 12 and a hypotenuse measuring 13?

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By using Pythagoras' theorem for a right angle triangle or measuring its longest side

If it has no right angles, it is not a right triangle and therefore you cannot name a hypotenuse of that triangle. Which implies you cannot find that side's measure.

It is the longest side of a right angle triangle.

No dimensions have been given but to find the hypotenuse of a right angle triangle use Pythagoras' theorem.

The sine of an angle in a right triangle is opposite/hypotenuse, where opposite is the only side that is not adjacent to the angle you want to find the sine of, and the hypotenuse is the side opposite the right angle in the triangle. Just find opposite/hypotenuse.

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By using Pythagoras' theorem for a right angle triangle or measuring its longest side

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If it has no right angles, it is not a right triangle and therefore you cannot name a hypotenuse of that triangle. Which implies you cannot find that side's measure.

If it has no right angles, it is not a right triangle and therefore you cannot name a hypotenuse of that triangle. Which implies you cannot find that side's measure.

The hypotenuse of right triangle of 300Cm and 400Cm is: 500 cm

Only a right triangle has a hypotenuse. An isosceles triangle can be a right triangle but it doesn't have to be. If it's not, then it doesn't have a hypotenuse.

First of all, you have to make sure that it's a RIGHT triangle. That means that one of the angles in the triangle is 90 degrees. If not, then it's not a right triangle, and it doesn't have a hypotenuse. If it IS a right triangle, then the longest side is the hypotenuse.

By definition, the hypotenuse is the side opposite the right angle in a right angled triangle. Therefore, a hypotenuse does not exist as one of the three sides in a non-right angled triangle.

It is the longest side of a right angle triangle.

You can't as there is no hypotenuse in an equilateral triangle. The hypotenuse is the side of a triangle which is opposite a right angle (90°); all angles in an equilateral triangle are 60°.

No dimensions have been given but to find the hypotenuse of a right angle triangle use Pythagoras' theorem.

The sine of an angle in a right triangle is opposite/hypotenuse, where opposite is the only side that is not adjacent to the angle you want to find the sine of, and the hypotenuse is the side opposite the right angle in the triangle. Just find opposite/hypotenuse.