Let G be the centroid of the equilateral triangle ABC of perimeter 24 cm. Then the length of AG is
Let two chords AB and AC of the larger circle touch the smaller circle having same centre at X and Y. Then XY = ?
A chord of a circle is equal to its radius. The angle subtended by this chord at a point on the circumference is
ΔABC is similar to ΔDEF. If area of ΔABC is 9 sq.m. and area of ΔDEF is 16 sq.cm. and BC = 2.1 m. Then the length of EF will be
If a+ 1/a = -2 then the value of
a1000+a-1000 is
If a3 = 117 + b3 and a = 3+b, then the value of a+b is: