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18 July, 17:13

Given a right triangle, find the measures of all the angles, in degrees, if one angle is a right angle and the measurement of the second angle is six less than seven times the measure of the third angle.

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  1. 18 July, 21:00
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    Give the known angle (90) a pronumeral of r.

    give the second angle (the one with all the subtraction) a pronumeral or x.

    give the third angle the pronumeral of y

    x = 7y - 6

    90 + x + y = 180

    90 + 7y - 6 + y = 180

    90 + 8y - 6 = 180

    90 + 8y = 186

    8y = 96

    y = 12. the third angle is 12

    so 12 + 90 = 102

    the second angle must equal 88 to make it to 180
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