Question

find the area of a triangle whose perimeter is 36cm and its sides are in the ratio a:b:c=3:4:5.​

Answer 1

Step-by-step explanation:

let the first angle be 3x

let the second angle be 4x

let the third angle be 5x

A.T.Q

36cm=3x+4x+5x

36cm=12x

36cm÷12=x

3cm=x

first angle=3x=3×3=9cm

second angle=4x=4×3=12cm

third angle=5x=5×3=15cm

Answer 2

Step-by-step explanation:

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