landonbulloch landonbulloch

12-10-2020
Mathematics

contestada

find the value of mn if ab= 9cm, bc= 7.2cm, and LM= 12cm

Respuesta :

diamondpick728 diamondpick728

20-10-2020

Answer:

9.6 cm

Step-by-step explanation:

Since the shapes are similar, we can write a proportion. Let x be the length of MN.

9/12 = 7.2/x Write a proportion.

9x = 12(7.2) Use cross products.

9x = 86.4 Multiply.

x = 9.6 Divide both sides by 9.

Side MN is 9.6 cm.

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