question_answer

Diagonal of a parallelogram are 6 cm and 8 cm, respectively and one side is 5 cm. The area of parallelogram is:

A) 48sq.cm                      

B) 30sq.cm

C) 24sq.cm        

D) 40sq.cm

Correct Answer: C

Solution :

AO = OC = 3cm BO = OD =4cm [Diagonals of a parallelograms bisects each other] AB = 5cm In \[1520{{m}^{2}}\] \[2520{{m}^{2}}\] \[2420{{m}^{2}}\] \[215c{{m}^{2}}\] So, \[205c{{m}^{2}}\] is a right triangle at O. So, area \[195c{{m}^{2}}\] \[295c{{m}^{2}}\] \[\Delta ABC\] So, area = (ABCD) \[128c{{m}^{2}}\] \[112c{{m}^{2}}\]