Mathematic Problems
345. példa

The paralell sides of the trapezoid orund the circle has length of 8 cm and 2 cm. Calculate the area of the trapezoid!

8+2=c+c
10=2c
c=5
c2=x2+h2
52=8-22+h2
25=36+h2
h2=36-25=9
h=9=3
T=a+b2·h=8+22·4=5·4
T=20 cm2
T=20 cm2