SOLUTION: the measure of an isosceles triangle are 21, 21, and 8. Find the measure of a base angle to the nearest degree?
Algebra.Com
Question 715774: the measure of an isosceles triangle are 21, 21, and 8. Find the measure of a base angle to the nearest degree?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
the measure of an isosceles triangle are 21, 21, and 8. Find the measure of a base angle to the nearest degree?
----------------
The altitude from the vertex bisects the base and forms a right triangle with side = 4 and hypotenuse = 21
cos(base angle) = 4/21
angle =~ 79 degs
RELATED QUESTIONS
in an isosceles triangle, the base is 14 cm long, and the legs are 13 cm long. Find the... (answered by KMST)
the measure of each base angle of an isosceles 21 more than the measure of the vertex... (answered by rapaljer)
[ What is the measure of a base angle of an isosceles triangle if the vertex angle... (answered by TimothyLamb)
In an isosceles triangle, the base is 30 centimeters long and the legs are each 17... (answered by ewatrrr)
The measures of the sides of an isosceles triangle are 10, 10, and 4. Find the measure of (answered by stanbon)
What is the measure of a base angle of an isosceles triangle if the vertex angle measures (answered by jim_thompson5910)
What is the measure of each base angle of an isosceles triangle if its vertex angle... (answered by Fombitz)
What is the measure of each base angle of an isosceles triangle if its vertex angle... (answered by jim_thompson5910)
The base of an isosceles triangle is 21 centimeters long. The altitude to the base is 9... (answered by RAY100)