यदि एक त्रिभुज की प्रत्येक भुजा को दुगना कर दिया जाए तो उसके क्षेत्रफल में ...% की वृद्धि होती
If every side of a triangle is doubled, then area of triangle increased by ...........%.
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Step-by-step explanation:
let each side of triangle be a,a,a
o. area = √3/4 *a^2
n. side = 2a
o.area : n area =√3//4 *a^2 :√3/4*(2a)^2
= 1 : 4
increase in area =3/1*100 = 300%
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