The angle of elevation of the top of a tower from a point...
The angle of elevation of the top of a tower from a point on the horizontal ground, 40m away from the foot of the tower is 30o. Find the height of the tower.
20m
40√3m/3
20√3m
40√3m
60cm
Correct answer is B
tan30=x40
x=40tan30=40√3
= 40√33m
Find the sum of the roots of the equation 2x2 + 3x - 9 = 0...
In the diagram, PQ is a straight line. If m = 12 (x + y + z), find value of m. ...
If three unbiased coins are tossed, find the probability that they are all heads ...
Find the values of p for which the equation x2 - (p - 2)x + 2p + 1 = 0...
If 2a = √64 and ba = 3, evaluate a2+b2 ...
Find the equation whose roots are 23and−14...
In the diagram PQRS is a circle, |PT| = |QT| and ∠QPT = 70o what is the size of ∠PRS?...