SOLUTION: Triangle PQR is right angled at Q. QT is perpendicular to PR, where T is the point on PR. If PQ = 3cm and PR = 18cm. Find QT

Question 1132554: Triangle PQR is right angled at Q. QT is perpendicular to
PR, where T is the point on PR. If PQ = 3cm and PR =
18cm. Find QT
Answer by ikleyn(52831) (Show Source): You can put this solution on YOUR website!
.

You can calculate the area of the triangle PQR by two ways.


One way is      Area = ...


Another way is  Area = ...


Since the area is the same, it gives you an equation


    .. = ..,   or   . = ..


Hence,  |QT| =  =  =  =  = 3.959 (approximately; correct with 3 decimal places).       ANSWER

Solved.

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