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Do isosceles triangles must include a 90 angle true or false?

Updated: 10/24/2022

Wiki User

∙ 8y ago

Best Answer

False.

Wiki User

∙ 8y ago

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Q: Do isosceles triangles must include a 90 angle true or false?

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True or false all isosceles triangles are also equilateral triangles?

False.

Are all equilateral triangles isosceles true or false?

False. Equilateral triangles are equilateral. All isosceles triangles have two of the sides the same, with the hypotenuse being longer than the other two.

Is it true or false that an isosceles triangle may have a right angle?

It is true.

In an isosceles triangle if a base angle has a measure of 43 degrees then the vertex angle must have a measure of 80 degrees as well true or false?

False because if each base angle is 43 degrees then the apex angle must be 94 degrees

Can an isosceles triangle be scalene?

it's false that the isosceles triangle can be scalene.......

Related questions

Some equilateral triangles are not isosceles?

All isosceles triangles are not equilateral triangles

True or false all isosceles triangles are also equilateral triangles?

False.

Is All isosceles triangles are similar true or false?

false

Are all equilateral triangles isosceles true or false?

False. Equilateral triangles are equilateral. All isosceles triangles have two of the sides the same, with the hypotenuse being longer than the other two.

True are false are all equilateral triangles are isosceles?

False. Equilateral triangles are equilateral. All isosceles triangles have two of the sides the same, with the hypotenuse being longer than the other two.

True or false All equilateral triangles are also isosceles triangles?

True

Can an angle be both obtuse and isosceles true or false?

False

Isosceles triangles may be obtuse or acute but never right?

false

Is it true or false that isosceles triangles have 2 equal sides?

True

Isosceles triangles can be acute or obtuse true or false?

true

Is it true or false that an isosceles triangle may have a right angle?

It is true.

Some triangles can have more than one right angle true or false?

false

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