हिंदी

In the given triangle, the length of AB is:

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प्रश्न

In the given triangle, the length of AB is:

विकल्प

  • 160 cm

  • 120 cm

  • 60 cm

  • 40 cm

MCQ
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उत्तर

40 cm

Explanation:

In right ΔABC (∠B = 90°), AC = 80 cm and ∠C = 60°.

So,

AB = AC × cos 60°

= 80 × `1/2`

= 40 cm

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अध्याय 22: Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle] - Exercise 22 [पृष्ठ ३४१]

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सेलिना Concise Mathematics [English] Class 9 ICSE
अध्याय 22 Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle]
Exercise 22 | Q 1. (e) | पृष्ठ ३४१
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