SOLUTION: The 3 angles of a triangle are (2x+5), (x-10) and 65. Find the size of each angle.
Algebra.Com
Question 821429: The 3 angles of a triangle are (2x+5), (x-10) and 65. Find the size of each angle.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The 3 angles of a triangle are (2x+5), (x-10) and 65.
Find the size of each angle.
--------
The sum of the angles is 180.
2x+5 + x-10 + 65 = 180
3x + 60 = 180
3x = 120
x = 40
-----------
2x+5 = 2*40+5 = 85 degrees
-----
x-10 = 30 degrees
-----
65 = 65 degrees
=====================
Cheers,
Stan H.
=================
RELATED QUESTIONS
Find the supplementary angle of 49 degree
98
131
41
(answered by bucky)
) A. Find the supplementary angle of 34
A. 146 B.... (answered by solver91311)
A. Find the supplementary angle of 34
A. 146 B. 56 (answered by Earlsdon)
T =a+b e^-kt (Equation 2)
where T is the temperature at time t, and a, b (answered by KMST)
Here is the question.
Expert trails at ski resorts are designated as double black... (answered by rothauserc)
a triangle has angles of size x, 2x, and 6x. Find the size of angle... (answered by richard1234)
You are standing 75 meters from the base of the Jin Mao in Shangai, China. You estimate... (answered by rfer)
the three angles of an isosceles triangle are 2x, x-10 and x-10. What is the actual size... (answered by rfer)
given that the angles of a triangle are (2x+20)degree, (x+25)degree and (2x-15)degree... (answered by richwmiller)