Adv
Deepak Bora
  • 0

Triangles : ∆ABC ~ ∆DEF. If AB = 4 cm, BC = 3.5 cm, CA = 2.5 cm and DF = 7.5 cm, find the perimeter of ∆DEF.

  • 0

∆ABC ~ ∆DEF. If AB = 4 cm, BC = 3.5 cm, CA = 2.5 cm and DF = 7.5 cm, find the perimeter of ∆DEF.

please help me with this question this is simple question for class 10th CBSE board Similarity Chapter 6

Share

Related Questions

Adv

1 Answer

  1. Because triangle ABC ∼ triangle DEF

    ∴ perimeter of triangle ABC : perimeter of triangle DEF = AC : DF

    Perimeter of triangle ABC = 4+3.5+2.5 = 10cm

    10 : perimeter of triangle DEF = 2.5 : 7.5

    Cross multiplying

    Perimeter of triangle DEF = 10× 7.5/2.5

    ∴ perimeter of triangle DEF = 30cm

    • 0
Leave an answer

Leave an answer

Browse

Choose from here the video type.

Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".

Captcha Click on image to update the captcha.