Question

the sides of a triangle are in ratio 3 ratio 5 ratio 7 and its perimeter is 60 cm find its all sides ​

Answer 1

Answer:

Let the sides be 3x 5x and 7x

3x+5x+7x=60cm

15x=60cm

x=60/15=4

Therefore sides are 3X4= 12

5X4=20

7X4=28

Answer 2

$\huge{\red{\underline {\underline {Question :-}}}}$

The sides of a triangle are in ratio 3 ratio 5 ratio 7 and its perimeter is 60 cm find its all sides ?

$\huge{\purple{\boxed {\boxed {Answer:-}}}}$

⭐ The sides are :- 12, 20 , 28

$\huge{\green{\underline {\underline {Solution:-}}}}$

Ratio of sides:- 3:5:7

Let sides be 3x, 5x, 7x

So, 3x+5x+7x =60

=> 15x =60

=> x = 60/15

=> x = 4

So, sides are :-

a = 3x = 3×4 =12

b = 5x = 5×4 =20

c = 7x = 7×4 =28

$\huge{\orange{\underline {\underline {Verification:-}}}}$

Perimeter of triangle Δ = s1 + s2+ s3

=> 60 = 12+20+28

=> 60= 60

=> LHS = RHS