7. The sides of a right angled triangle are in A.P. Show that they are in the ratio 3:4:5
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it means that 3x+4x+5x = 180degree
=)12x=180degree
=)x=180÷12
=)×=15 degree
measure of first side=3x=3×15=45degree
measure of second side =4x=4×15=60degree
measure of third side=5x=5×15=75degree
hope this help you
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