Three observation posts P,Q and R are such that Q is due east of P and R is due north of Q. If |PQ| = 5km and |PR| = 10km, find |QR|

Similar Questions

If the 2nd term of a G.P is $\frac{8}{9}$ and the 6th term is 4$\frac{1}{2}$. Find the common ra...

A man invests a sum of money at 4% per annum simple invest. After 3 years, the principal amounts to ...

Calculate without using tables Tan 45° + Cos 60° ...

The difference between 4$\frac{5}{7}$ and 2$\frac{1}{4}$ greater by...

The weights of 30 new-born babies are given as follow: 6, 9, 5, 7, 6, 7, 5, 8, 9, 5, 7, 5, 8, 7, 8, ...

In ∆MNO, MN = 6 units, MO = 4 units and NO = 12 units. If the bisector of and M meets NO at P, cal...

Two beads are drawn at random, one after the other, with replacement, from a box containing 5 red an...

Solve the following equations 4x - 3 = 3x + y = x - y = 3, 3x + y = 2y + 5x - 12 ...

In a committee of 5, which must be selected from 4 males and 3 females. In how many ways can the mem...

What is the value of sin(-690)?...