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Angles (With their Types) — MATHS STD 6 — Question

ICSE BoardEnglish MediumSTD 6MATHSAngles (With their Types)2 Marks
Question
Find the complement of: $\frac{2}{5}$ of $210^{\circ}$
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Answer

We know that two angles are called complementary when their sum is 90°. Now
$\frac{2}{5}$ of $210^{\circ}$
$=\frac{2}{5} \times 210^{\circ}=2 \times 42^{\circ}=84^{\circ}$
∴ Its complement will be = 90° - 84° = 6°

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