Two corners of an isosceles triangle are at (2 ,5 )(2,5) and (4 ,8 )(4,8). If the triangle's area is 6 6, what are the lengths of the triangle's sides?

1 Answer
May 12, 2018

color(green)("lengths of sides of the triangle are " 3.61, 3.77, 3.77lengths of sides of the triangle are 3.61,3.77,3.77

Explanation:

![https://byjus.com/isosceles-triangle-formula](useruploads.socratic.org)

A (2,5), C (4,8), " Area of triangle "A_t = 6A(2,5),C(4,8), Area of triangle At=6

bar (AC) = b = sqrt((4-2)^2 + (8-5)^2) = sqrt13 = 3.61¯¯¯¯¯¯AC=b=(42)2+(85)2=13=3.61

h = (2 * A_t) / b = (2 * 6) / 3.61 = 3.32h=2Atb=263.61=3.32

a = sqrt(h^2 + (b/2)^2) = sqrt(3.32^2 +( 3.61/2)^2) = 3.77a=h2+(b2)2=3.322+(3.612)2=3.77