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If it contains a 90 degree angle and two acute angles that add up to 90 degrees then it is a right angle triangle.

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Wiki User

7y ago
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Trent Holbrook

Lvl 6
3y ago

yes, two sides are perpendicular and the side lengths fit the pythagrean theorum

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Q: Is the following shape a right triangle how do you know?
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Related questions

How do you know when its a right triangle?

It will have an L shape flipped around at the corner. or you can use a protractor or type in google images 'right angle triangle' they will have an L shape at the corner of the right angled triangle.


What shape has three sides that are not equal but have a right angle?

with the three sides you know it will be a triangle, it is a right triangle, it is not an equilateral triangle or an isosceles triangle... so it must be a right scalene triangle


What is A shape with three sides called?

A shape with three sides is called a triangle: 3 equal sides = equilateral 2 sides same length = isosceles 1 right angle = right-angled triangle


A triangle with one right angle?

A triangle with 1 right angle is a right angle triangle.


How do you know if a triangle is a right triangle?

If it has one 90 degree angle then it is a right triangle.


How do you know if a triangle is a right triangle using the pythagorean therom -?

Pythagoras' theorem states that for any right angle triangle the square of its hypotenuse is equal to the sum of its squared sides as in the following formula:- a squared + b squared = c squared whereas a and b are the sides of the triangle with c being its hypotenuse


What shape has 3 horizontal sides?

Triangle


What shape is a square and a triangle?

A house i don't really know


What do you call A triangle with a 90 degrees angle?

Any triangle with a 90 degree angle is called a right triangle.


How do you know if a triangle is a right triangle by it's sides?

C2=a2+b2


How do you use pythagaoras theorem?

If you know any two sides of a right triangle, you can calculate the third by Pythagoras' Theorem.If you know any two sides of a right triangle, you can calculate the third by Pythagoras' Theorem.If you know any two sides of a right triangle, you can calculate the third by Pythagoras' Theorem.If you know any two sides of a right triangle, you can calculate the third by Pythagoras' Theorem.


How do you know when a triangle is 90 degrees?

we know that a triangle is 90 degrees by measuring its length or it can be known as right triangle which measures 90 degrees.