Which of the following is a conjunction ?
A
or
B
very
C
to
D
out
Correct Answer: or
ধরি, আয়তক্ষেত্রের length এবং breadth যথাক্রমে x cm. এবং y cm. ∴Area = length×breadth = xy cm2∴PerimeterBreadth = 51⇒2x + yy = 51⇒2x + 2y = 5y⇒2x = 5y - 2y = 3y⇒x = 3y2 = 1·5y⇒3y = 2x⇒y = 23x∴1xy = 216⇒x·23x = 216⇒2x2 = 3×216⇒x2 = 3×108⇒x2 = 324∴x324 = 18∴Length is 18 cm.