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In ΔABC, if a = 18, b = 24, c = 30 then find the values of A(ΔABC) - Mathematics and Statistics

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प्रश्न

In ΔABC, if a = 18, b = 24, c = 30 then find the values of A(ΔABC)

योग
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उत्तर

Given: a = 18, b = 24 and c = 30
∴ 2s = a + b + c
= 18 + 24 + 30
= 72
∴ s = 36

`A(ΔABC) = sqrt(s(s - a)(s - b)(s - c)`
`= sqrt(36(36 - 18)(36 - 24)(36 - 30)`

`= sqrt(36 xx 18 xx 12 xx 6)`

`= sqrt(36 xx 18 xx 4 xx 18)`

= 6 x 18 x 2

= 216 sq units.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Trigonometric Functions - Exercise 3.2 [पृष्ठ ८८]

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बालभारती Mathematics and Statistics 1 (Arts and Science) [English] Standard 12 Maharashtra State Board
अध्याय 3 Trigonometric Functions
Exercise 3.2 | Q 10.5 | पृष्ठ ८८
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