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9 December, 12:51

In ΔEFG, the measure of ∠G=90°, the measure of ∠E=20°, and GE = 75 feet. Find the length of EF to the nearest tenth of a foot.

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  1. 9 December, 13:15
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    Answer:80 feet

    Step-by-step explanation:

    Sum of < in a triangle is 180°


    90 + 20 + < F = 110

    < F = 70°

    Using sine rule

    sin G/EF = sin F/EG

    sin90°/EF = sin70°/75

    EF = 75sin90°/sin70°

    = 79.81

    =80 to the nearest tenth feet.
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