Questions
A parallelogram is formed with a and b as the sides. Let d1 and d2 be the diagonals of the parallelogram. Then a2 + b2 = …..
a
d12+d22
b
d12−d22
c
d12+d22/2
d
d12−d22/2
detailed solution
Correct option is C
d1 = a+b and d2= a -bNow d12=a2+b2+2abcosθand d22=a2+b2−2abcosθ∴a2+b2=d12+d22/2Talk to our academic expert!
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