# Find the third side of traingle ABC where B. is at 90° . (hint:) solve it by Pythagoras theorem. 1. AB=42cm , AC= 50cm, BC=? 2. BC=27,AC=30,AB=?

2
by shivam21

2015-10-25T16:40:22+05:30

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BC^2+AB^2=AC^2_____________________________ BC^2=AC^2-AB^2____________________________- BC^2=50^2-42^2_____________________ BC^2=736 BC=√736 BC=4×√46=27.13____________________ Similarly for the given data AB=3√19=13.08=√171
2015-10-25T16:44:19+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
BC×BC=AC×AC-BA×BA
BC×BC=50×50-42×42.
BC×BC=2500-1764
Bc×BC=736
bc=√737
SIMILARLY
AB=3√19