1.

Find the percentage increase in the area of a traingle if each side is increased by y times​

Answer»

Answer:

300% or 4 times

Explanation:

area of TRIANGLE=√s(s-a)(s-b)(s-c) where a,b,c are SIDES and s is HALF of a+b+c

doubling the sides:

LET new s as x

so x=half of 2a+2b+2c

i.e.x= half of 2(a+b+c)

I.e x=2s

so area of triangle after doubling sides is

√2s(2s-2a)(2s-2b)(2s-2c)

=√2*2*2*2*s(s-a)(s-b)(s-c)

=4√s(s-a)(s-b)(s-c)

=4.normal area


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