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Mathematics 9 Online
OpenStudy (anonymous):

In the diagram, PSR and RTQ are right angled triangles. If TR = 8 cm, Find the area of PQRS.

OpenStudy (anonymous):

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OpenStudy (anonymous):

assuming t is the intersection of PR and Q(T?): the line PR is 18+8, 26cm thus the area of triangle PQR is 1/2bh, = (1/2) x 26 x 12 = 156 area of triangle PSR is 1/2bh, = (1/2) x 26 x 10 = 130 area of total PSQR = 130 + 156 = 286

OpenStudy (anonymous):

For the triangle psr, how can it be 1/2 x 26 x 10... coz 26 isnt the breadth or height....its the hypotenuse

OpenStudy (anonymous):

oh sorry youre right. so using pythag \[10^{2} + x ^{2} = 26^{2}\] so 676-100=x^2 sqrt576=24=x so area of psr = half x 24 x 10 = 120 total = 120 + 156 = 176

OpenStudy (anonymous):

yeapz i got it....tq

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