their is an angle opposite to 60 degrees is (2x + 10) and you know that angle opposite to it is the same , so what does x =
in (2x + 10)?
2007-11-13 13:38:15 · 6 answers · asked by maria s 1 in Science & Mathematics ➔ Mathematics
(2x + 10)=60
2x = 60 - 10
2x = 50
x = 25
2007-11-13 13:42:55 · answer #1 · answered by Robert S 7 · 0⤊ 0⤋
Solution 1 :
angle A = angle B = 2x + 10 = 60 degrees => angle C = 60
degrees
In geometry, for all triangles sum of angles => 180 degrees
So, => (2x + 10) + (2x + 10) + (2x+ 10) = 180
6x + 30 = 180
6x = 150
x = 25
Solution 2 (simplest solution):
2x + 10 = 60 for each angle(A, B and C)
so, just solved this equation => 2x + 10 = 60
2x = 50
x = 25 degrees
Answer : x = 25 degrees
2007-11-13 13:53:01 · answer #2 · answered by frank 7 · 0⤊ 0⤋
In a triangle, there are 180 degrees. So if one angle is 60 degrees, and the other two are both 2x+10 degrees, then the other two must add up to (180-60) degrees or 120 degrees. Therefore if 2*(2x+10)=120, then 2x+10=60 (you could skip that middle step if you wanted to). so 2x=50, and x=25
2007-11-13 13:43:06 · answer #3 · answered by Austin W 1 · 0⤊ 0⤋
"Same" means angle opposite is also 60deg,
so 2x+10=60
2x=50, x=25
Please check to make sure you wrote the question correctly.
2007-11-13 13:42:18 · answer #4 · answered by halac 4 · 0⤊ 0⤋
2x+10=60
2x=50
x=25
2007-11-13 13:42:02 · answer #5 · answered by ken 3 · 0⤊ 0⤋
2x+10+60=180
2x+70=180
2x=110
x=55
2007-11-13 13:41:27 · answer #6 · answered by Anonymous · 0⤊ 0⤋