Question
Find the median of the following observations: 13, 14,
12, 15, 11, 16, 19, 10, 20, 18, 17Solution
Ascending order of observations: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
Number of observations = 11 (odd number).
Median formula for odd observations:
Median = [(n + 1) ÷ 2]th term
For n = 11, the 6th term is 15.
Find the area of triangle having sides in the ratio 4:5:7 & the perimeter of the triangle is 16 cm
If O is circumcentre of acute angled triangle ABC, if ∠ BAC = 70˚ then ∠BOC = ?
In the given figure CD is parallel to AB then ∠y is?

What will be inradius of a right angle triangle whose base is 12 cm & height is 35 cm ?
In a ∆ ABC, the angle bisector of ∠A, ∠B, ∠C meet at point I, if ∠AIC is double of equilateral ∆ , then find the ∠ABC =? (in degree)
...The ratio of the angles ∠A and ∠B of a non-square rhombus ABCD is 7:5, then the value of the ∠C is
If O is the orthocentre of ΔABC , if ∠BOC = 1250 then what is the measure of ∠BAC?
If the area of ∆ ABC is 30 cm2 & G is the centroid of ∆ ABC.then the area of the ∆ AGB?
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...