The sum of angle in a triangle is 180 degrees.. The measure of <1 from thediagram is 150 degrees
Sum of angle in a triangle
The sum of angle in a triangle is 180 degrees. From the given disgaram, the sum of the angles of the right triangle is 180 degrees.
Using the expression to find the measure of the acute angle
90 + 60+x = 180
150 + x = 180
x = 180 - 150
x = 30
Determne the value of <1
<1 + 30 = 180
<1 = 180 - 30
<1 = 150degrees
Hence the measure of <1 from thediagram is 150 degrees
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