Triangle abc is similar to triangle def. the length of bc is 21cm. the length of de is 10 cm. the length of ef is 14 cm. what is the length of ab?

Skip to content# Triangle abc is similar to triangle def. the length of bc is 21cm. the length of de is 10 cm. the length of ef is 14 cm.

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Triangle abc is similar to triangle def. the length of bc is 21cm. the length of de is 10 cm. the length of ef is 14 cm. what is the length of ab?

It's a similar triangle so the ratios of corresponding sides should be equal which means

BC/EF = AB/DE

21/14 = AB/10

AB = 21/14 * 10 = 15 cm

So we have to fine the dialation first. so BC and EF are similar because those are the two corresponding lines. divide 21 and 14. the dialation is 1.5 AB corresponds with DE so multiply 10 by 1.5. so AB is 15 the other answer is incorrect hope this helped you have a good day!!!

I think the length is 26

15 got 100% on test..