Area of the largest triangle that can be inscribed in a semicircle of radius 2 cm is :
A2 cm^2
B4 cm^2
C3 cm^2
D4 pi cm^2
A2 cm^2
B4 cm^2
C3 cm^2
D4 pi cm^2
Related Questions:
A hollow iron pipe is 21 cm long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is