The area of triangle with base 4 cm and height is 3 cm
ABCD is a rectangle with O as any point in its interior. If ar(△AOD)=3cm2 and ar(△BOC)=6cm2, then area of rectangle ABCD is
The height of an equilateral triangle is 3√3 cm. Its area is
(a) 6√3 cm2 (b) 27cm2 (c) 9√3 cm2 (d) 27√3 cm2