Find: Bc - Mathematics

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Sum

Find: BC

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Solution

From right triangle ABC

tan 30° = `"AB"/"BC"`

`(1)/sqrt(3) = (12)/"BC"`

BC = `12sqrt(3) "cm"`.

Concept: Solution of Right Triangles
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APPEARS IN

Selina Concise Mathematics Class 9 ICSE
Chapter 24 Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle]
Exercise 24 | Q 13.1 | Page 304
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