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Measure it or check that it complies with Pythagoras' theorem.

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13y ago
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Q: How do you work out if a triangle is right-angled?
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What is the example of triangle?

isosceles,equilateral,rightangled


The dose the Pythagorean Theorem only work on right triangles?

I quote " The square on the hypotenuse of a rightangled triangle..."


What describes a triangle with two 45 dergree angles?

Right Triangle A rightangled triangle, since the last angle has to be 90 degrees


What triangle appers to be both right and isosceles?

a right angled triangle with the remaining angles both being 45 degrees will be a rightangled triangle and an isosceles triangle.


What are the angles of a rightangled triangle?

One is 90 degrees, the other two can be any combination that adds up to 90.


Why do you think non-right triangles don't uphold the Pythagrean therom?

First of all, it is clear that a right angled triangle does conform to Pythagoras. So, take any rightangled triangle, and without changing the length of the small sides, slightly reduce the right-angle to something smaller. What was the hypotenuse is now smaller than it was, so its square is now smaller. But the sum of the squares of the other 2 sides hasn't changed. So the Pythagoras result does not work for this new situation.


How does a triangle sequence work?

A triangle that is in a sequence


When does the pythagoream therom not work?

When a triangle is not a right triangle


How do you work out a length of a triangle?

The way you can work out the length of a triangle is if you are given the height and the area of that triangle ( this works of you don't want to measure it) or you could just measure it.


Pythagoras theorem will always work in what type of triangle?

Pythagoras theorem will always work with a right-angled triangle.


Does the Pythagorean theorem work on isosceles triangles?

it depens if the isosceles triangle is a right triangle or not


How do you work out what the smallest angle is in a right angled triangle?

It depends on what else you know about the triangle.