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If an isoceles triangle has angles of 20 degreesand 80 degreees what is the measure fore third angle?
Wiki User
∙ 7y ago
The 3rd angle is 80 degrees
Wiki User
∙ 7y ago
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What does trigonometry mean?
triangle measure
How do you find angle on triangle?
Given only the information provided in the question, the answer is to measure it.
When to use Pythagoras?
In a right angle triangle,pythagoras theorem can be used if (1)the 2 sides are equal and their measure is less than the hypotenuse (or) (2)the 2 sides are different and their measure is less than the hypotenuse.
What is the measure of angle A in triangle ABC if B equals 15 degrees C equals 65 degrees and side a equals 19?
If you are really talking about a closed triangle ABC, then the length of side "a" (given as 19) does not matter in the calculation. Sum of the angles of a triangle is 180 degrees. Angle B and C add up to 15 + 65 = 80 degrees. Hence angle A is (180 - 80) = 100 degrees
What does the tangent of infinity equal?
The tangent of infinity is undefined because it is not a real number. The tangent function is defined as the ratio of the side opposite a given angle to the side adjacent to the angle in a right triangle. Since infinity is an abstract concept which has no physical representation, it is not possible to measure the sides of a triangle with an infinite length. Therefore, the tangent of infinity is undefined.
How do you find the perpendicular height of a isoceles triangle?
You can find it by using the Pythagorean theorem if you know the side and the base of triangle. In an isosceles triangle the median is also the altitude. The formula is: (The measure of the side length)^2 - (The measure of the one half of the base length )^2 = (The measure of the altitude)^2. Find the square root of the result that you'll have the measure of the altitude.
Angles of isoceles triangle?
The interior angles of a triangle add up to 180. So a triangle with 3 equal sides (or angles) will have 60-degree angles. * * * * * True, but the question is about an isosceles triangle, not an equilateral triangle. The angles of an isosceles triangle are x, x and 180-2x degree where x is a measure between 0 and 90 degrees.
What is the measure of the sides of an isosceles triangle if one side equals 12.1?
If one side of an isoceles triangle has a measure of 12.1, then either... 1. One of the other sides is also 12.1. ...or... 2. The other two side as equal to each other but not equal to the known side. In both cases, the unknown side(s) are unknown, because the angles are not stated.
What degrees does an isoceles trapezoid measure?
The 4 interior angles add up to 360 degrees
Half the supplement of an angle is 12 degreees less than twice the complement of the angle Find the measure of the angle?
40 degres
Is it a right triangle if it measure 579?
is it a right triangle if the measure is 5 7 and 9
What are the kinds of triangle according the measure of angle?
Angle in triangle abc measure 27, 73 and 80, what kind of triangle is abc
What is the measure of an triangle?
The three interior angles add up to 180°. (180° is the measure of a triangle)
How do you measure the two angles of a triangle?
There are three angles in a triangle but to measure them you would use a protractor.
What is the measure of angle b in a triangle?
it depends on the triangle
What type triangle has a measure as 128?
A triangle on a concave surface.
What is triangle that has angles that measure 30 60 90 degrees?
A right triangle, whose the length measure of the side opposite to the angle of 30 degrees is one half of the length measure of the hypotenuse.
