Question

triangle ABC is similar to triangle DEF,ar(ABC)=9cm square ,ar(DEF)=16cm square.If BC=2.1cm then what's measure of EF?
please answer fast with explanation.I will mark you the brain liest​

Answer 1

Step-by-step explanation:

Step-by-step explanation:

Here,triangleABC ~ triangle DEF

Therefore,

BC/EF = AC/DF = AB/DE

Then,

ar(triangleABC)/ ar(triangleDEF) = 16/9

(BC/EF)^ = 16/9

(2.1/EF)^ =16/9

EF^=16×2.1^/9

EF=2.8cm

Answer 2

Answer:

EF is 2.8 .

hop this may help u..