The length of the congruent sides makes no difference to the measured angles.
Assuming the base angles are the congruent angles, then:
angle = (180o - other_angle) ÷ 2
= (180o - 42o) ÷ 2
= 69o
The base angles of an isosceles triangle are congruent. The vertex angle of an isosceles triangle is not necessarily congruent to the base angles.
(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).
130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.
the top angle the angle formed by the two congruent sides
Yes * * * * * No. A median is a line from a vertex to the midpoint of the opposite side. It divides the triangle into congruent parts only if the triangle is equilateral or if the triangle is isosceles and it is the median from the unequal vertex. In all other cases the two parts will not be congruent.
The base angles of an isosceles triangle are congruent. The vertex angle of an isosceles triangle is not necessarily congruent to the base angles.
If the vertex of an isosceles triangle has a measure of 70° what is the measure of one base angleANSWER:Isosceles = 2 legs, 1 vertex, 1 baseTriangle = 180°if its vertex measure 70° , 1 leg ____? + 1 leg____? =180° and all isosceles triangle has congruent legs.180°- 70°=110° then 110° divided by 2 =55°=vertex of an isosceles triangle measure 70° and its 2 legs measure 55°
(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).
Only if the vertex angle being bisected is between the sides of equal length will the result be two congruent triangles.
No, because then it would become an equilateral triangle.
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.
130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.
the top angle the angle formed by the two congruent sides
Yes * * * * * No. A median is a line from a vertex to the midpoint of the opposite side. It divides the triangle into congruent parts only if the triangle is equilateral or if the triangle is isosceles and it is the median from the unequal vertex. In all other cases the two parts will not be congruent.
If it is an isosceles triangle then the base angles must be equal angles of 69 degrees because there are 180 degrees in a triangle and 42+69+69 = 180 degrees
90 degrees. This is an isosceles right triangle, standing on its hypotenuse.
Well a triangle with two congruent sides would be called a isosceles triangle. It has a vertex, two base angles, two legs, and a base.