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प्रश्न
Find 'x', if:
योग
उत्तर
From the figure we have
sin 45° = `(20)/x`
`(1)/sqrt(2) = (20)/x`
x = 20`sqrt(2)`
x = 20 × `1.414/1000`
x = 28.28
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Solution of Right Triangles
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