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Home / Doubts and Solutions/GUJARAT - GUJARATI MEDIUM/Class 9/ગણિત

QID : 63 - In ΔDEF, G and H are points on side DE and DF respectively. GH is parallel to EF. If G divides DE in the ratio 1:3 and HF is 7.2 cm, find length of DF?

Asked by aryap7964 6th December 2017, 4:02 PM
Answered by Expert
Answer:
begin mathsize 16px style SInce space GH space is space parallel space to space EF comma DG over GE equals DH over HF rightwards double arrow 1 third equals fraction numerator DH over denominator 7.2 end fraction rightwards double arrow DH equals 2.4 space cm Then comma space DF equals DH plus HF equals 2.4 plus 7.2 equals 9.6 space cm end style
Answered by Expert 8th December 2017, 10:42 AM
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