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An equilateral TRIANGLE is not an isosceles ANGLE. However, all equilateral triangles are isosceles triangles. By definition, an isosceles triangle has at least two sides that are congruent. An equilateral has three sides that are congruent, thus an equilateral triangle is an isosceles triangle.
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What is pythagorean spiral?
it is a series of isosceles triangles with all 90 degree angles and consist of 17 triangles
Name four different types of triangles?
Types of Triangles: By Sides: Isosceles- 2 congruent sides Scalene- no congruent sides Equilateral- 3 congruent sides By Angles: Acute- angles measuring less than 90° Obtuse- one angle measuring more than 90° Right- one angle measuring exactly 90° Equiangular- all angles measuring exactly the same- same as equilateral triangle
What triangle means having exactly the same size and shape?
there are 3 different types of triangles: an equilateral triangle: all sides and angles are the same an isosceles triange: 2 sides are the same and the 2 base angles are equal a scalene triange: nothing is the same
Are isosceles triangles with a 40 degree vertex angle similar?
Yes, because all of the other 4 angles are also equal.
What type of triangle can an isosceles triangle be scalene right acute obtuse?
What are the properties of the various triangles given:Isosceles triangles have two sides equal, two angles equalScalene triangles have all three sides different and all three angles differentRight triangles have one angle which is a right angle (90°)acute triangles have all angles less than 90°obtuse triangles have one angle greater than 90°As an isosceles triangle has two sides equal, it cannot be a scale triangle which has all three angles different.For the other three properties, consider:The sum of the angles in a triangle is 180°If one angle is 90°, the other two angles could be: (180° - 90°) / 2 = 45° each - two angles the same→ an isosceles triangle could be a right triangleIf all angles are less than 90°, let one angle be 80°, the other two angles could be: (180° - 80°) / 2 = 50° each - two angles the same→ an isosceles triangle could be an acute triangle(Note that if one angle was 60°, then the other two being equal would be: (180° - 60°) / 2 = 60° each making all three angles the same and the triangle an equilateral triangle)If one angle is greater than 90°, let it be 100°, the other two angles could be: (180° - 100°) / 2 = 40° each - two angles the same→ an isosceles triangle could be an obtuse triangleFrom the given list, an isosceles triangle could be a right, acute or obtuse triangle, but it could not be a scalene triangle.
All isosceles triangles are also equilateral triangles?
No. All equilateral triangles are isosceles, but not all isosceles triangles are equilateral.
Are angles in an isoceles triangle equal?
Isosceles triangles have at least 2 equal angles. The 3rd angle can either be equal to the other two (it's then called an equilateral triangle), or it can be different from the two equal angles, in which case it's an isosceles triangle. All equilateral triangles are isosceles triangles, but not all isosceles triangles are equilateral triangles.
Some isosceles triangles are not equilateral?
All isosceles triangles are not equilateral triangles
Some isosceles triangles are equilateral.?
All isosceles triangles are not equilateral triangles
Some isosceles triangles are not equilateral.?
All isosceles triangles are not equilateral triangles
Some equilateral triangles are not isosceles.?
All isosceles triangles are not equilateral triangles
Are some isosceles triangles equilateral triangles?
Yep. All equilateral triangles are isosceles triangles.
Are triangles equilateral?
Some triangles are equilateral, but not all of them. There are three types of triangles. Triangles which have three equal sides and three equal angles are called equilateral triangles. Isosceles triangles have two equal sides and two equal angles. Scalene triangles have no equal sides and no equal angles.
Are all equilateral triangles also isoscelles triangles?
Yes. But not all isosceles triangles are equilateral.
Are all triangles semmetrical?
No. But all isosceles triangles and equilateral triangles are.
Is it true that all isosceles triangles can be equilateral triangles?
No
All isosceles triangles are equilateral true or false?
False. TrueAn isosceles triangle has at least 2 equal sides. An equilateral triangle has 3 equal sides. Therefore all equilateral triangles are isosceles, but not all isosceles triangles are equilateral.
