Quantitative Aptitude – Geometry – Mensuration – A parallelogram ABCD has area 48 sqcm

Slot -2 – Quantitative Aptitude – Geometry – Mensuration – A parallelogram ABCD has area 48 sqcm

A parallelogram ABCD has area 48 sqcm. If the length of CD is 8 cm and that of AD is s cm, then which one of the following is necessarily true?

a) 5≤s≤7

b) s≤6

c) s≥6

d) s≠6

Answer: c) s≥6

Solution: 1

Solution: As the area of ABCD = 48=s×h ————1)
In right-angled triangle CKD, DK ≤ CD ( CD is hypotenuses )
So h ≤8
Thus s ≥6——-(from eq 1)

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