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Because it's perpencicular to its apex
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∙ 11y ago
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When does the median of the triangle bisect the base at 90 degree?
in an isosceles triangle
How many lines of symetry does isosceles triangle have?
Only one line of symmetry, it is the line that contains the median of the isosceles triangle (that passes through the vertex and perpendicular to the base).
In an isosceles triangle the base angles are?
The base angles of an isosceles triangle are congruent.
An angle not congruent to the base angles of an isosceles triangle?
The base angles of an isosceles triangle are congruent. The vertex angle of an isosceles triangle is not necessarily congruent to the base angles.
Which is the base of an isosceles triangle?
Two sides of an isosceles triangle are equal. The base is the other side.
When does the median of the triangle bisect the base at 90 degree?
in an isosceles triangle
In an isosceles triangle does the median to the base bisect the vertex angle?
In the diagram, ABC is an isoscels triangle with the congruent sides and , and is the median drawn to the base . We know that ∠A ≅ ∠C, because the base angles of an isosceles triangle are congruent; we also know that ≅ , by definition of an isosceles triangle. A median of a triangle is a line segment drawn from a vertex to the midpoint of the opposite side. That means ≅ . This proves that ΔABD ≅ ΔCBD. Since corresponding parts of congruent triangles are congruent, that means ∠ABD≅ ∠CBD. Since the median is the common side of these adjacent angles, in fact bisects the vertex angle of the isosceles triangle.
Do the medians of a triangle bisect the internal angles?
Not always. 1. The median to the base of an isosceles triangle bisects the vertex angle. 2. When the triangle is an equilateral triangle, then the medians bisect the interior angles of the triangle.
How many lines of symetry does isosceles triangle have?
Only one line of symmetry, it is the line that contains the median of the isosceles triangle (that passes through the vertex and perpendicular to the base).
In an isosceles triangle the base angles are?
The base angles of an isosceles triangle are congruent.
Which statement about the base angles of an isosceles triangle is true?
The base angles are always congruent.
An angle not congruent to the base angles of an isosceles triangle?
The base angles of an isosceles triangle are congruent. The vertex angle of an isosceles triangle is not necessarily congruent to the base angles.
Which is the base of an isosceles triangle?
Two sides of an isosceles triangle are equal. The base is the other side.
Can a median triangle also consider as a base?
The median of a triangle cannot be considered as a base of that triangle.
What is the same about an isosceles triangle and an isosceles trapezoid?
In an isosceles triangle and an isosceles trapezoid, both base angles are congruent
Is the isosceles triangle is always a right triangle?
It usually is a right angle that represents an isosceles triangle but there are some cases that the right and left side are equal and the base is the one with an unequal length.
Does triangular prism can have isosceles trianles as base?
Sometimes triangular prisms have isosceles triangle bases. It is the most common, but they don't always have isosceles triangles.
