हिंदी

A vertical pole 6 m long casts a shadow of length 3.6 m on the ground. What is the height of a tower which casts a shadow of length 18 m at the same time?

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प्रश्न

A vertical pole 6 m long casts a shadow of length 3.6 m on the ground. What is the height of a tower which casts a shadow of length 18 m at the same time?

विकल्प

  • 10.8 m

  • 28.8 m

  • 32.4 m

  • 30 m

MCQ
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उत्तर

30 m

Explanation:

The pole and the tower form similar right triangles with their shadows, so heights are proportional to shadow lengths.

`h/18 = 6/(3.6)`

⇒ `h = 6 xx (18/3.6)` 

= 6 × 5

= 30 m

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Triangles - MULTIPLE-CHOICE QUESTIONS (MCQ) [पृष्ठ ४५१]

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आर.एस. अग्रवाल Mathematics [English] Class 10
अध्याय 7 Triangles
MULTIPLE-CHOICE QUESTIONS (MCQ) | Q 4. | पृष्ठ ४५१
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