Isosceles trapezoid

The lengths of the bases of the isosceles trapezoid are in the ratio of 5:3. The arms have a length of 5 cm and height = 4.8 cm. Calculate the circumference and area of a trapezoid.

Correct answer:

o =  21.2 cm
S =  26.88 cm2

Step-by-step explanation:

r=5 cm v=4.8 cm  x2+v2=r2=52=25 x=r2v2=524.82=57=1.4 cm  3 a=5 c x=(ac)/2 3 a=5 c 1.4=(ac)/2  3a5c=0 ac=2.8  a=7 c=521=4.2  o=a+c+2 r=7+4.2+2 5=21.2 cm
S=2a+c v=27+4.2 4.8=25672 cm2=26.88 cm2

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