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.
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