24-09-2019
Mathematics

contestada

What is the length of BC?
A. 6 2/3 cm
B. 5cm
C. 4cm
D. 6cm

What is the length of BC A 6 23 cm B 5cm C 4cm D 6cm class=

Respuesta :

24-09-2019

Thought I already answered this. I must have forgotten to click "add your answer."

We have similar triangle trianges ABC ~ ADE so

BC:AB = DE:AD

BC:2 = 10 : (2+3) = 10:5 = 2:1

So BC=4 because 4:2 = 2:1

Choice C.

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