^@ABCD^@ is a square with each side measuring ^@16 \space cm^@. ^@M^@ is a point on ^@CB^@ such that ^@CM = 4 \space cm^@. If ^@N^@ is a variable point on the diagonal ^@DB^@, find the least value of ^@CN + MN^@.
The area of a trapezium is 329 cm2 and the distance between its parallel sides is 14 cm. If one of the parallel sides is of length 21 cm, find the length of the other side.
Two chords AB and AC of a circle subtends angles equal to 70° and 90°, respectively at the centre. Find ∠BAC, if AB and AC lie on the opposite sides of the centre.
The sides of a quadrilateral, taken in order are ^@ 14 \space cm, 13 \space cm, 12 \space cm,^@ and ^@9 \space cm^@ respectively. The angle contained by the last two sides is a right angle. Find the area of the quadrilateral.
Eric, Katrina, John, Sean, Billie, and Brittany are playing game by forming two teams of three players in each. In how many different ways can they be put into two teams of three players?