Isosceles trapezoid

Find the area of an isosceles trapezoid, if the bases are 12 cm and 20 cm, the length of the arm is 16 cm

Correct answer:

S =  263.8788 cm2

Step-by-step explanation:

a=12 cm c=20 cm r=16 cm  x=(ca)/2=(2012)/2=4 cm  h=x2+r2=42+162=4 17 cm16.4924 cm  S=2a+c h=212+20 16.4924=64 17=263.8788 cm2

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


Tips to related online calculators
Pythagorean theorem is the base for the right triangle calculator.

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

Related math problems and questions: