33. In a triangle if each side of a triangle is halved, them what is t

1.	33. In a triangle if each side of a triangle is halved, them what is the percontage diange in its(1) 75% increase(3) 25% increase(2) 75% decrease(4) 25% decrease
Answer» Area of triangle = A = square root of [s(s-a)(s-b)(s-c) where 2s =a+b+c. Each side is halved, s’ = s/2 (s’-a’) = (s-a)/2. (s’-b’) = (s-b)/2. (s’-c’) = (s-c)/2. New areaA’ = square root of [s(s-a)(s-b)(s-c) /16. = A/ 4. Change in area = 3/4 A = 75% decrease still more clear

33. In a triangle if each side of a triangle is halved, them what is the percontage diange in its(1) 75% increase(3) 25% increase(2) 75% decrease(4) 25% decrease

Answer»

Area of triangle = A = square root of [s(s-a)(s-b)(s-c) where 2s =a+b+c.

Each side is halved,

s’ = s/2

(s’-a’) = (s-a)/2.

(s’-b’) = (s-b)/2.

(s’-c’) = (s-c)/2.

New areaA’ = square root of [s(s-a)(s-b)(s-c) /16. = A/ 4.

Change in area = 3/4 A

= 75% decrease

still more clear