the areas of two similar triangles ABC and DEF are 36cm and 81 cm irespectively of EF =6.9 then find BC
Answers
Answered by
0
Answer:
15.5
Step-by-step explanation:
Answered by
5
Answer: BC = 4.6 cm
Step-by-step explanation:
ar( triangle ABC ) BC square
_____________ = ___________
ar( triangle DEF ) EF square
36/81 = BC square/(6.9)square
36/81 = BC square/47.61
BC = 4.6 cm
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