1.

Find the area of triangle whose sides are in the ratio of 12 is to 17 is 225 and its perimeter is 540 CMplz guys fast

Answer» RATIO of SIDES
12: 17:25

let them be
12x,17x, 25X respectively

perimeter of a triangle = sum of all sides
540 = 12x,17x, 25x
540 = 54x
x = 10

all sides measure
12x = 12×10 = 120
17x = 17× 10 = 170
25x= 25 × 10 = 250

it's semipetimeter = 540/2
= 270

using HERON's FORMULA area of the triangle =
root {(s)(s-a)(s-b)(s-c)}

where s is the semipetimeter and a,b,c
area the sides of the triangle.

root {( 270)(270-120)(270-170)(270-250)}
= 9000cm²


Discussion

No Comment Found

Related InterviewSolutions