Trapezoid ABCD v2

Trapezoid ABCD has a length of bases in ratio 3:10. The area of triangle ACD is 825 dm2. What is the area of trapezoid ABCD?

Correct answer:

S =  1072.5 dm2

Step-by-step explanation:

a/c=3/10 SACD=825=ch/2 h=2SACD/c  S=2a+ch=2a+cc2SACD S=(a+c)SACD/c S=SACD(a/c+1)=825(3/10+1) S=1072.5 dm2



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







Tips for related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
See also our trigonometric triangle calculator.

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

Related math problems and questions: