Question

Triangle ABC is similar to triangle DEF and has a ratio of similarity of 10:3. If side EF measures 30 mm, how long is side BC?

Answer 1

Please, please, please, please,pleaseee help :)

Answer 2

without a picture i will assume that the labelling is in alphabetical order
so \(\frac{BC}{EF}=\frac{10}{3}\)

Answer 3

Yes, sorry. There wasn't any picture. ):

Answer 4

we can replace \(EF\) by \(30\) and get
\[\frac{BC}{30}=\frac{10}{3}\] and therefore
\[BC=\frac{30\times 10}{3}=10\times 10=100\]

Answer 5

Oh, okayy. :D So the answer is 100mm?

Answer 6

yup

Answer 7

Thank youu! Could you help me with one more thing?

Answer 8

sure

Answer 9

Nvmind. I understand this one. Thank you so much, really♥

Answer 10

yw