Circumference 7065

In an isosceles triangle, the base length is equal to 75% of the arm's length. If the circumference is 22 cm, determine the area of the triangle.

Final Answer:

S =  22.2486 cm2

Step-by-step explanation:

o=22 cm q=75%=10075​=43​=0.75  z = q ⋅  r o = 2r + z o = 2r + q⋅ r  r=o/(2+q)=22/(2+0.75)=8 cm  z=q⋅ r=0.75⋅ 8=6 cm h=r2−(z/2)2​=82−(6/2)2​=55​ cm≐7.4162 cm  S=2z⋅ h​=26⋅ 7.4162​=3 55​=22.2486 cm2

Try another example


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







Tips for related online calculators
Our percentage calculator will help you quickly and easily solve a variety of common percentage-related problems.
See also our right triangle calculator.
Do you want to convert length units?
Calculation of an isosceles triangle.
See also our trigonometric triangle calculator.

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

algebraarithmeticplanimetricsbasic operations and conceptsUnits of physical quantitiesGrade of the word problem

 
We encourage you to watch this tutorial video on this math problem: video1   video2

Related math problems and questions: