If `a : b=c : d` then `(m a+n c)/(m b+n d)` is equal to `m : n` b. `d : c n` c. `a n : m b` d. `a : b`

If a:b=c:d then (ma+nc)/(mb+nd) is equal to m:n b.d:cn c.an:mb d.a:b

If a ,\ m ,\ n are positive integers, then {root(m)root (n)a}^(m n) is equal to (a) a^(m n) (b) a (c) a^(m/n) (d) 1

In a parallelogram A B C D diagonals A C\ a n d\ B D intersect at O\ a n d\ A C=6. 8\ c m\ a n d\ B D=5. 6 c m . Find the measures of O C\ a n d\ O D .

In a parallelogram A B C D diagonals A C\ a n d\ B D intersect at O\ a n d\ A C=6. 8\ c m\ a n d\ B D=5. 6 c m . Find the measures of O C\ a n d\ O D .

In Figure, if A C is bisector for /_B A D such that A B=3\ c m\ a n d\ A C=5\ c m , then C D= (a) 2\ c m (b) 3\ c m (c) 4\ c m (d) 5\ c m

In Figure, if A C is bisector fo /_B A D such that A B=3\ c m\ a n d\ A C=5\ c m , then C D= 2\ c m (b) 3\ c m (c) 4\ c m (d) 5\ c m

In Figure, A B C D is a rectangle. B M\ a n d\ D N are perpendicular from B\ a n d\ D respectively on A C . Prove that M B C~= D N A (ii) B M=D N

A B\ a n d\ C D are two chords of a circle such that A B=6\ c m ,\ C D=12\ c m\ a n d\ A B || C D . If the distance between A B\ a n d\ C D is 3\ c m , find the radius of the circle.

In a \ /_\A B C , If L\ a n d\ M are points on A B\ a n d\ A C respectively such that L M || B C . Prove that: a r\ (\ /_\L C M)=a r\ (/_\ L B M)

In a \ A B C , If L\ a n d\ M are points on A B\ a n d\ A C respectively such that L M B Cdot Prove that: a r\ (\ L B C)=\ a r\ (\ M B C)