Question

ABCD is a parallelogram, Area(DAB)=

• A. 2A(||^gmABCD)
• B. 1/2 [Ar (||^gmABCD)]
• C. 1/4 [Ar (||^gmABCD)]
• D. 3/4 [Ar (||^gmABCD)]

Answer 1

The correct option is B

1/2 [Ar (||^gmABCD)]

A diagonal divides a parallelogram into two congruent triangles.

So, Ar (∆DAB) = Ar (∆DCB) as areas of two congruent triangles are equal.

So, Ar (∆DAB) =1/2 Ar (||^gmABCD)