Question
8, 15, 44, 175, 874,
? What will come in place of the question mark (?) in the following series?Solution
8 X 2) - 1 = 15 (15 X 3) - 1 = 44 (44 X 4) - 1 = 175 (175 X 5) - 1 = 874 (874 X 6) - 1 = 5243
If I is the incentre of ΔABC , if ∠ BIC = 112.5° , then what is the measure of ∠ BAC?
In ∆ABC , G is the centroid , AB = 8 cm, BC= 12 cm and AC = 14 cm , find GD, where D is the mid-point of BC?
In ∆ABC , G is the centroid , AB = 6 cm, BC= 8 cm and AC = 10 cm , find GD, where D is the mid-point of BC?
In a quadrilateral PQRS, the bisectors of ∠R and ∠S intersects each other at point 'O'. Find the ∠Q if ∠P = 75o and ∠ROS = 95...
- If two circles of radii 'R' and 'r' cm intersect each other externally at one point, then which of the following is true?
The length of the each side of an equilateral triangle is 21√3. The area of incircle, (cm 2 ) is
What is the ∠ SRO if O is the centre of circle, ∠ SPO = 55˚ and ∠ POR = 115 ˚
The sides of a triangle are 10 cm, 17 cm, and 21 cm. Find the area of the triangle using Heron’s formula.
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