Isosceles right triangle

The area of an isosceles right triangle is 18 dm2. Calculate the length of its base.

Correct answer:

c =  8.4853 dm

Step-by-step explanation:

S=18 dm2  a=b  S = 2a b= 2a2  a=2 S=2 18=6 dm  b=a=6 dm  c=a2+b2=62+62=6 2=8.4853 dm

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