Isosceles triangle 10

In an isosceles triangle, the equal sides are 2/3 of the length of the base. Determine the measure of the base angles.

Correct answer:

B =  41.4096 °

Step-by-step explanation:

a = c = 32 b cos B =  ab/2 cos B =  32 bb/2 cos B =  321/2  B1=arccos(2/31/2)0.7227 rad  B=B1  °=B1 π180   °=0.7227 π180   °=41.41  °=41.4096=41°2435"

Try calculation via our triangle calculator.




Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Calculation of an isosceles triangle.
See also our right triangle calculator.
See also our trigonometric triangle calculator.

You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: