0
How many different isosceles triangles have at least one angle that measures exactly 20?
Wiki User
∙ 11y ago
If one angle measures 20 degrees then the other two angles must each measure 80 degrees and many other similar or congruent isosceles triangles can have the same interior angles.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Does an isosceles triangle have exactly 2 lines of symmetry?
No, isosceles triangles only have one. ■
Which type of triangles has exactly two sides that are congruent?
An Isosceles triangle has two sides (and two angles) congruent.
Can an isoceles triangle be equilateral?
-- Some mathematicians define an 'isosceles' triangle as one with at least twoequal sides. They would say that equilateral triangles are isosceles.-- Other mathematicians define an 'isosceles' triangle as one with exactly twoequal sides. They would say that equilateral triangles are not isosceles.
Do isosceles triangles have exactly two acute angles?
Answer: Yes, because of the two angles have to be exactly equal in order to be isosceles. And no isosceles has 3 acute angles and then it will be equilateral triangle Answer: No, the isosceles triangle can either have two acute angles, or all three can be acute.
Do isosceles triangles have all equal sides?
Some people classify isosceles triangles as having at least two equal sides, while other say that they must have exactly two equal sides. So, depending on your definition, some isosceles triangles may have all equal sides, but equilateral triangles always have three equal sides.
Does an isosceles triangle have exactly 2 lines of symmetry?
No, isosceles triangles only have one. ■
Which type of triangles has exactly two sides that are congruent?
An Isosceles triangle has two sides (and two angles) congruent.
Can an isoceles triangle be equilateral?
-- Some mathematicians define an 'isosceles' triangle as one with at least twoequal sides. They would say that equilateral triangles are isosceles.-- Other mathematicians define an 'isosceles' triangle as one with exactly twoequal sides. They would say that equilateral triangles are not isosceles.
Do isosceles triangles have exactly two acute angles?
Answer: Yes, because of the two angles have to be exactly equal in order to be isosceles. And no isosceles has 3 acute angles and then it will be equilateral triangle Answer: No, the isosceles triangle can either have two acute angles, or all three can be acute.
Can two triangles be congruent if all three angles have exactly the same measures?
No, they cannot, because if you think about it, the sides can be different proportional lengths but have the same angle measures.
How many sides does an isosceles triangle have that are congruent?
An isosceles triangle has exactly two sides which are equal. (The word congruent usually applies to triangles, not sides.)
Do isosceles triangles have all equal sides?
Some people classify isosceles triangles as having at least two equal sides, while other say that they must have exactly two equal sides. So, depending on your definition, some isosceles triangles may have all equal sides, but equilateral triangles always have three equal sides.
A isosceles triangle is a special type of equilateral triangle?
Not ... exactly. It would be closer to accurate to say that an equilateral triangle is a special case of the isosceles triangle.All equilateral triangles are (also) isosceles; but most isosceles triangles are not equilateral.
Are all isosceles triangles with two 50 degrees and exactly one side of length 10cm congruent?
Yes, they are.
All equilateral triangles are also isosceles triangles?
True or False, depending on your definition of isosceles triangles!Actually, whether your answer is true or false depends upon your definition of an isosceles triangle. Some mathematicians define an isosceles triangle as one with at least two sides, while others define an isosceles triangle as one with exactly two sides. The latter definition is the more generally accepted one. Since an equilateral triangle has three, not exactly two congruent sides, people using the second definition of isosceles triangles would say that the statement is false, not true.False because an equilateral triangle has 3 equal sides whereas an isosceles triangle has only 2 equal sides
What has exactly 1 line of symmetry?
All the at least 1 line of symmetry are called: squares rectangles hexagons octagons triangles semicircles kites parallelograms isosceles triangles equilateral triangles Good Luck Finding an Answer! :)
Can you make 2 exact triangles using exactly 9 toothpicks?
If one of the nine toothpicks is the common base of the two congruent isosceles triangles with sides formed by two toothpicks.
