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31 August, 18:57

Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary.

B = 71°, a = 11 cm, c = 18 cm

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  1. 31 August, 19:09
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    Here given angle B = 71°, side a = 11 cm, side c = 18cm.

    We have to find the area of a triangle.

    There is a formula to find the area of a triangle when two sides and angle between them given.

    The formula is 1/2 * a * c * sin (B)

    So, the area of the triangle

    = 1/2 * 11 * 18 * sin (71°) cm²

    = 1/2 * 11 * 18 * (0.945518575599) cm²

    =1/2 * (187.212677968602) cm²

    = 93.606338984301 cm²

    We have to round the answer to the nearest hundredth.

    So the required area of the triangle = 93.61 cm²
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