The sum of the measures of the angles of a triangle is 180. The sum of the measures of the second and third angles is nine

2 answers:

6 0

Divide the measure of all 3 angles into 10 parts...1 part is the measure of angle x, and the other angles add up to the other 9 parts. 180/10=18...so x = 18.
So angle y and z together add up to the other 162 degrees.
Divide 162 in half to find the “middle”...162/2=81.
Since we were told that the difference between y and z is 20...y would be 10 less than that middle number, and z would be 10 more than it...so y=71, and z=91.
The answers are...
X=18, Y =71, Z=91

UkoKoshka [18]2 years ago

4 0

Yea I agree that the correct answer
Ok

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