s6ummywiftar s6ummywiftar

01-03-2017
Mathematics

contestada

Triangle ABC is similar to triangle DEF . The length of BC¯¯¯¯¯ is 21 cm. The length of DE¯¯¯¯¯ is 10 cm. The length of EF¯¯¯¯¯ is 14 cm.

What is the length of AB¯¯¯¯¯?

Respuesta :

rarrininger rarrininger

03-03-2017

Set up a proportion x/21 = 10/14
Cross multiply
14x = 210
Divide both sides by 14
x = 15

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