0
An isosceles triangle has a base of 22 cm and a vertex angle of 36 degrees. Find its perimeter?
Chep21
If the vertex angle is 36 degrees then the two base angles must be 72 degrees each.
An isosceles triangle can be thought of as being two conjoined right angled triangles.
So by halving the base we can work out the hypotenuse with the trigonometry ratio for the cosine.
cosine = adj/hyp and when rearranged hyp = adj/cosine
hyp = 11/cosine 72 degrees = 35.59674775
Perimeter = 35.59674775+35.59674775+22 = 93.1934955 cm
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 53?
If your "53" is in degrees, then the vertex angle is 74 degrees.
An exterior angle at the base of an isosceles triangle measures 130 find the measure of the vertex angle?
80 degrees.
What is the measure of a vertex angle of an isosceles triangle if the measure of an exterior at the base is 100 degrees?
20 degrees and the two equal angles will be 80 degrees each
An exterior angle at the base of an isosceles triangle measures 110 find the measure of the vertex angle?
40
What is the measure of the vertex angle of an isosceles triangle if the measure of one of it's base angles is 58?
64° is.
What is the measure of the base angles of an isosceles triangle whose vertex angle has a measure of 50 degrees?
130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.
What is the maximum vertex angle in an isosceles triangle?
an isosceles triangle can have any vertex angle less than 180 and greater than 0, as long the other two angles are equal. an isosceles triangle with a vertex of 179 degrees would just have the other two angles be 0.5 degrees. A right triangle with matching angles (both 45 degrees) would be both a right triangle and isosceles triangle.
The vertex angle of an isosceles triangle is twice as large as one of the base angles Find the measure of the vertex angle?
90 degrees. This is an isosceles right triangle, standing on its hypotenuse.
A base angle of an isosceles triangle is 6 degrees more than the vertex angle. Find the vertex angle?
56 degrees
What is the measure of the base angle of an isosceles triangle if the vertex measures 38 degrees?
(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).
What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 53?
If your "53" is in degrees, then the vertex angle is 74 degrees.
What is the measurement of the vertex angle of an isosceles triangle is the measure of one of its base angle is 42?
The vertex angle of an isosceles triangle is equal to the measure of each of its base angles. Therefore, if one of the base angles measures 42 degrees, then the vertex angle also measures 42 degrees.
The exterior angle of a base angle in an isosceles triangle is 100 degrees What is the measure of the vertex angle?
20 degrees
What is the measure of an acute base angle of the trapezoid of an isosceles triangle vertex of 46 degrees?
For an isosceles triangle with vertex 46 degrees, the sum of the remaining two base angles is 180-46 = 134 degrees. Base angles are equal because it's isosceles, so each angle is half of their sum. 134/2 = 67 degrees. Thus, any isosceles trapezoid formed inside that isosceles triangle by drawing parallel lines to the triangle's base, will have base angle measures of 67 degrees, which are triangle's base angles.
If a base of an isosceles triangle is 75 degrees What is the measure of the vertex angle?
30o
What is the measure of a base angle of an isosceles triangle if its vertex angle measures 65?
57.5 degrees
How is an isosceles trapezoid related to an isoceles triangle?
If the sloped sides of an isosceles trapezium are extended to a vertex, you would get an isosceles triangle.If the sloped sides of an isosceles trapezium are extended to a vertex, you would get an isosceles triangle.If the sloped sides of an isosceles trapezium are extended to a vertex, you would get an isosceles triangle.If the sloped sides of an isosceles trapezium are extended to a vertex, you would get an isosceles triangle.
