(2 ÷ 3) × (4 ÷ 12) × (? ÷ 10) × 45 × (1 ÷ 5) = (? ÷ 6) + (2 ÷ 5)
2/3 × 4/12 × x/10 × 45 × 1/5 = x/6 + 2/5 (2 x)/10  = x/6 + 2/5 x/5 - x/6 = 2/5 (6x-5x)/30 = 2/5 x/6 = 2 ∴x = 12
The lengths of three medians in a triangles are 21 cm, 28 cm, 35 cm. What is the area of that traingle (in cm 2 )?
Find the radius of the sphere whose volume is 562.5Ï€ cm3
ABCD is a square. P, Q, R and S are points on the sides AB, BC, CD and DA respectively such that AP = BQ = CR = DS. Angle SPQ equal to ?
The area of the largest triangle inscribed in a semi-circle of radius R is-
A circular clock has the hour hand of length 42 cm. Find the length of the distance it covers by its tip from 11 p.m. to 3 a.m.
In the given figure. ABCDEF is a regular hexagon whose side is 6 cm. APF, QAB, DCR and DES are equilateral triangles. What is the area (in cm2
In ∆ABC , G is the centroid , AB = 5 cm, BC= 6 cm and AC = 7 cm , find GD, where D is the mid-point of BC?
ABC is an isosceles triangle inscribed in a circle. If AB = AC = 12√5 and BC = 24 cm then radius of circle is
