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If an isosceles triangle has one of its angles fifty degrees what will the others be?
Wiki User
∙ 14y ago
Either both 65o or one of 50o and one of 80o.
Wiki User
∙ 14y ago
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An isosceles triangle is equilateral?
No, isosceles and equilateral are two separate types of triangles. Isosceles triangles have only two congruent sides, while all three sides of an equilateral triangle are congruent.
What defines a right triangle?
One of the triangle's angles is 90 degrees (a rightangle) and the two others are both 45 degrees. The three angles in a triangle must always (and will) add up to 180 degrees.
If a triangle has an angle that is 120 degrees and two others that are 30 degrees is it a right angle?
no because none of the angles are 90 degrees
How do you know when its an obtuse triangle?
You know it's an obtuse triangle when one of the angles is greater than 90 degress, and both of the others are less than 90 degrees.
When is a median and an altitude the same segment?
In an isosceles or equilateral triangle, when from the vertex that is different from the others.
Can a right triangle have two angles that measure 38 and 54 degrees?
No. A right angle triangle means the total sum of the interior angles is 180 degrees and also there is a right angle (90 degree), meaning that the sum of the other 2 angles must be 90 degree (1 degree difference is not allowed)
How many obtuse angles does an obtuse triangle have?
One and the two others are acute angles
What triangle has 2 acute angles?
In Euclidean geometry a right angle triangle has two acute angles. All others have three.
How many different types of quadrilaterals can two congruent isosceles right triangles form if they share a side?
# The triangles are congruent, therefore triangle 1 has the same angles and lengths as triangle 2 # The triangles are isosceles, therefore two of the sides are the same length, and two of the angles are the same # The triangles are right, therefore the angle between base and height is 90 degrees Applying 2, and 3: A triangle that is both isosceles and right has the angles 45, 90, 45 degrees and the lengths base = height = hypotenuse / sqrt(2) Applying 1: Therefore, the triangles can share their base and heights with each other freely, but their hypotenuse can only be shared with each others hypotenuse. * If Triangle-1 shared it's hypotenuse with triangle-2's base, or height which are not the same size, the resulting shape would have five sides which is not a quadrilateral. So... # If triangle-1 shares its base with triangle-2's base, or if triangle 1 shares its height with triangle's 2 height, you are left with an equilateral triangle # If triangle-1 share its base with triangle-2's height, or if triangle 1 share its height with triangle's 2 base you are left with a trapezoid # If the triangles share a hypotenuse, you are left with a rectangle in which base = height. Otherwise known as a square There are three different types of quadrilaterals that can be made.
How do you draw isosceles triangle?
you draw it with 2 sides of the same length and 1 that isn't the same as the others
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 are supplementary and complementary angles?
The sum of two complementary angles is 90.E.g. 30 degrees and 60 degrees are each others complementary angles.The sum of two supplementary angles is 180.E.g. 105 and 75 are each others supplementary angles.Supplementary angles are those whose angles add up to 180 degrees. Complementary angles are those whose angles add up to 90 degrees.
