What length would the 2 sides be, in a triangle that has a 20 foot bottom (longest side) with a 110 degree..?

the top angle is 110 degrees, the two other corners are 35 degree, and the two sides are equal ( yeah I knew how to do this in high school! )

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  • 8 years ago
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    Here,

    side, a = 20 feet,

    <A = 110 degrees,

    <B = <C = 35 degrees,

    By sine-law : a/sinA = b/sinB = c/sinC,

    side, b = a.sinB/sinA = 20*sin(35)/sin(110) = 12.21 feet >===============< ANSWER

    side, c = a.sinC/sinA = 20*sin(35)/sin(110) = 12.21 feet >=============< ANSWER

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