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The Pythagorean theorem only applies to right triangles, so the isosceles triangle must also be a right triangle.

In equation form:

a2 = b2 + c2, where b=c

a2 = 2b2

Some examples:

(a,b,c) = (2.5,1,1), (8.5,2,2), (2,2.5,2.5)

Note: 2.5= sqrt(2)

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What does triangle equals two Times Square plus five equal?

A triangle that has 2 equal sides is an isosceles triangle


If it is an equilateral triangle it is isosceles?

An equilateral triangle is a triangle with three equal sides. An isosceles triangle is one with two equal sides. So yes, an equilateral triangle qualifies as being an isosceles triangle as well. This is quite similar to the relationship between squares and rectangles, where a square is always a rectangle, but a rectangle isn't necessarily a square.


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

An isosceles triangle has to have two sides of equal length. An isosceles triangle has to have two sides of equal length.


What is is an isosceles triangle?

An isosceles triangle is any triangle with at least two sides of equal length. Logically, an isosceles triangle also has at least two angles of equal size. An equilateral triangle is a triangle with three equal sides and three equal angles (all of which are 60 degrees). Since it has at least two equal sides then it is therefore also an isosceles triangle. This is no different to the way in which a square is also a rectangle, or a circle is also an ellipse. They are simply special cases of the general case.


What are 2 properties of an isosceles triangle?

-- An isosceles triangle has two equal sides. -- An isosceles triangle has two equal angles. -- An isosceles triangle has two equal interior-angle bisectors. -- The bisector of the vertex angle of an isosceles triangle is also the perpendicular bisector of the triangle's base.

Related Questions

What does triangle equals two Times Square plus five equal?

A triangle that has 2 equal sides is an isosceles triangle


A 45-45-90 triangle is an example of an isosceles right triangle?

yes, because isosceles triangle is a triangle with two sides of equal length.


If it is an equilateral triangle it is isosceles?

An equilateral triangle is a triangle with three equal sides. An isosceles triangle is one with two equal sides. So yes, an equilateral triangle qualifies as being an isosceles triangle as well. This is quite similar to the relationship between squares and rectangles, where a square is always a rectangle, but a rectangle isn't necessarily a square.


Is an isosceles triangle a right triangle?

It can be because it depends on the triangle's angles. For example, if the triangle has 2 equal sides and a right angle it could be a isosceles and a right triangle.


An isosceles triangle is a triangle that?

An isosceles triangle has 2 equal sides and 2 equal angles.


What shape has 2 equal sides?

There are infinitely many possible options. Any polygon can have two equal sides. For example, an isosceles triangle.


Does every triangle with two equal angles also have two equal sides?

Yes an isosceles triangle for example


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

An isosceles triangle has to have two sides of equal length. An isosceles triangle has to have two sides of equal length.


What is is an isosceles triangle?

An isosceles triangle is any triangle with at least two sides of equal length. Logically, an isosceles triangle also has at least two angles of equal size. An equilateral triangle is a triangle with three equal sides and three equal angles (all of which are 60 degrees). Since it has at least two equal sides then it is therefore also an isosceles triangle. This is no different to the way in which a square is also a rectangle, or a circle is also an ellipse. They are simply special cases of the general case.


What are 2 properties of an isosceles triangle?

-- An isosceles triangle has two equal sides. -- An isosceles triangle has two equal angles. -- An isosceles triangle has two equal interior-angle bisectors. -- The bisector of the vertex angle of an isosceles triangle is also the perpendicular bisector of the triangle's base.


Does an isosceles triangle have any equal sides?

An isosceles triangle has two equal sides.


How many equal angles does an isosceles triangle have?

Isosceles triangle have two equal angles2