If A= (1 2) find the value of k if 2(A)=K(A) with
(4 2)
Determinant method
In the figure qr is the common tangent to given circles which meet at t tangent at t meets qr
A frustum of a square pyramid of height 28.5cm has the base 62.5cm and top suface of 42.5cm.The volume of the frustum is........cubic decimeter.