Triangles ABC and DEF are similar. AB = 15 cm, BC = 18 cm, and EF = 6 cm. What is DE? A. 4 cm B. 5 cm C. 6 cm D. 7 cm
2 answers:
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One fifth is the same as 
and 15 is the same as 
So just times across,
×
Resulting in(1 x 15= 15, and 5 x 1= 5),
If you need/want to reduce it, divide both numbers by 5. Leaving you with the simplified answer of
or 3. Either answer works. :)
If you have any questions, just comment them down below :)
So just times across,
Resulting in(1 x 15= 15, and 5 x 1= 5),
If you need/want to reduce it, divide both numbers by 5. Leaving you with the simplified answer of
If you have any questions, just comment them down below :)