A geometry problem by Neil Cua
Geometry
Level
1
Two angles of a triangle have the same measure. Thw measure of the third angle is 4° less than twice the measure of each of the equal angles. Find the measure of the third angle.
Measures are in degrees.
88°
42°
46°
32°
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1 solution
Hello, peace be upon you,
let x = the angle of each of the sama 2 sides, sum of interior angles of a triangle = 180 degress,
x + x + ( 2x - 4 ) = 180
4x = 184
x = 46 degrees,
since the 3rd angle is = 2x - 4 = 2(46) -4 = 88 degress,
thanks.....