The sides of a triangle are 6 cm, 11 cm and 15 cm. The radius of its incircle is `3sqrt(2)\ c m` (b) `(4sqrt(2))/5\ c m` (c) `(5sqrt(2))/4\ c m` (d) `6sqrt(2)\ c m`

The sides of a triangle are 11 c m ,\ 15 c m\ a n d\ 16 c mdot\ The altitude to the largest side is 30\ sqrt(7)\ c m (b) (15sqrt(7))/2\ c m (c) (15\ sqrt(7))/4c m\ (d) 30\ c m

In an isosceles triangle, the measure of each of the equal sides is 10 cm and the angle between them is 45o . The area of the triangle is 25 c m^2 (b) (25)/2sqrt(2) c m^2 (c) 25sqrt(2) c m^2 (d) 25sqrt(3) c m^2

A B\ a n d\ C D are two parallel chords of a circle with centre O such that A B=6\ c m\ a n d\ C D=12\ c mdot The chords are on the same side of the centre and the distance between them is 3 cm. The radius of the circle is 6\ c m (b) 5\ sqrt(2)\ c m (c) 7\ c m (d) 3\ sqrt(5)\ c m

The altitude of an equilateral triangle of side 2sqrt(3) c m is 1/2c m (b) (sqrt(3))/4c m (c) (sqrt(3))/2c m (d) 3 c m

The circumference of a circle is 100 cm. The side of a square inscribed in the circle is 50sqrt(2) c m^2 (b) (100)/pi c m^2 (c) (50sqrt(2))/pic m^2 (d) (100sqrt(2))/pic m^2

The area of an equilateral triangle is 4sqrt(3)\ c m^2dot\ The length of each of its side is (a)3 cm (b) 4 cm (c) 2sqrt(3)\ c m (d) (sqrt(3))/2\ c m

Length of each edge, of a regular tetrahedron is 1 cm. Its volume is (sqrt(3))/(12)c m^3 (b) 1/4sqrt(3) c m^3 (c) (sqrt(2))/6c m^3 (d) 1/(12)sqrt(2) c m^3

Each side of a regular hexagon is 1cm. The area of the hexagon is 3sqrt(2)backslash cm^(2) (b) 4sqrt(3)backslash cm^(2) (c) (3sqrt(3))/(4)backslash cm^(2) (d) (3sqrt(3))/(2)backslash cm^(2)

Each side of an equilateral triangle is equal to the radius of a circla whose area is 154cm^(2). The area of the triangle is (7sqrt(3))/(4)cm^(2)(b)(49sqrt(3))/(2)cm^(2)(49sqrt(3))/(4)cm^(2)(d)(7sqrt(3))/(2)cm^(2)

Q.The side of a regular dodecagon is 2cm The radius of the circumscribed circle in is is cms, is.(A)4(sqrt(6)-sqrt(2))(B)sqrt(6)+sqrt(2)(C)2(sqrt(2))/(sqrt(3+1))(d)sqrt(6)-sqrt(2)