21) 5 shelves
22)385mm
22)385mm
Solve for n and m using special right triangle rules!!!
1 answer:
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Answer:
D
Step-by-step explanation:
Δ ABC and Δ RSC are similar triangles, thus the ratio of corresponding sides are equal, that is
=
, substitute values
=
= 3 ( multiply both sides by 5 )
BC = 5 × 3 = 15 → D