Math, asked by manishprik5693, 11 months ago

The side of a triangle are in the ratio 3 :5:7? and its perimeter is 45 cm what are the length of sides

Answers

Answered by CᴀɴᴅʏCʀᴜsʜ
43

Answer:

Let the 1st side of a ∆ be 3x

2nd side = 5x

3rd side = 7x

Perimeter = 45

A/q

3x + 5x + 7x = 45

=> 15 x = 45

=> x = 45/15

= 3

Hence ,

1st side = 3x = 3×3 = 9 cm

2nd side = 5x = 5×3 = 15 cm

3rd side = 7x = 7×3 = 21 cm

Ans...

Hope it helps you...

Answered by tjvclvpi
6

Answer:

3x+5x+7x=45

15x=45

x=45/15

x=3

3x=3×3=9

5x=5×3=15

7x=7×3=21

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