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तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता ९

The arch of a bridge has dimensions as shown, where the arch measure 2m at its highest point and its width is 6m. What is the radius of the circle that contains the arch? - Mathematics

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प्रश्न

The arch of a bridge has dimensions as shown, where the arch measure 2m at its highest point and its width is 6m. What is the radius of the circle that contains the arch?

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उत्तर

AD = `6/2`

= 3 m

In the right ΔADC,

AC2 = AD2 + DC2

= 32 + 22

= 9 + 4

= 13

AC = `sqrt(13)`

= 3.6 m

radius = 3.6 m

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पाठ 4: Geometry - Exercise 4.4 [पृष्ठ १७३]

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सामाचीर कलवी Mathematics [English] Class 9 TN Board
पाठ 4 Geometry
Exercise 4.4 | Q 6 | पृष्ठ १७३
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