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Question

Construct a triangle similar to a given ABC such that each of its sides is (3/4)th of the corresponding sides of ABC. It is given that BC=6 cm,B=50 and C=60.

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Solution

Let ΔABC be a triangle having BC=6cm;B=50°;C=60°.
Steps of construction of triangle (3/4)th of ABC:
(1). Draw a ray BX making an acute angle with BC on the opposite side of vertex A.
(2). Mark four points on BX as B1,B2,B3,B4 such that BB1=B1B2=B2B3=B3B4.
(3). Join B4C and draw a line through B3 parallel to B4C intersect BC at C.
(4). Draw a line C parallel to AC intersect AB at A.
Thus, ΔABC is required triangle.

1370706_971775_ans_95eb84934bcf43f5b356ad361460ccd7.png

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