Question

Sides of a triangle are in the ratio of 12:17:25 and its perimeter is 540cm. Find its area????
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Answer 1

Answer:

Step-by-step explanation:

12x+17x+25x=540

54x=540

X=10

Ar=1/2*base*height

=128.47

Answer 2

first , let the Unknown sides be 12x,17x and 25 x

then as we know perimeter is the sum of all sides .so,

25x+17x+12x = 540cm

54x = 540cm

x=10cm

• now we got the sides

if we know that it is right angle triangle we can calculate area by 1/2*base*height

bt if we dont know

then use this formula √s(s-a)(s-b)(s-c)