Parallelogram 54791

Construct triangle ABC if c = 5cm, b = 7cm and a = 4cm. Then create a parallelogram axially symmetric with the line AC. Measure the size of the second diagonal of this quadrilateral.

Correct answer:

u =  10.247 cm

Step-by-step explanation:

c=5 cm b=7 cm a=4 cm  v=c=5 cm  u2 + v2  = 2   (a2+b2)  u=2 (a2+b2)v2=2 (42+72)52=105=10.247 cm



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