Rectangle

The length of the rectangle are in the ratio 5:12 and the circumference is 238 cm. Calculate the length of the diagonal and area of rectangle.

Correct result:

u =  91 cm
S =  2940 cm2

Solution:

o=238 cm s=a+b=o/2 s=o/2=238/2=119 cm  a=s 55+12=119 55+12=35 cm b=s 125+12=119 125+12=84 cm  u=a2+b2=352+842=91 cm
S=a b=35 84=2940 cm2



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