B = 5A
C = 4A - 8
The sum of the angles of a triangle = 180°
A + B + C = 180
A + 5A + (4A - 8) = 180
10A = 188
A = 18.8° (and therefore B = 94° and C = 67.2°)
60 degrees
60o
60.
60 degrees
10001/999900
a = a b = 4a c = 5a-9 a+4a+5a-9 = 180 10a = 189 a = 18.9 degrees
60 degrees
Angle A = A Angle B = 4A Angle C = 5A-11 Sum of angles in a triangle is 180o. 180 = A + B + C = A + 4A + 5A-11 = 10A - 11 10A = 191 A = 19.1o B = 4A = 76.4o C = 5A-11 = 84.5o
Angles: acute angle, obtuse angle, right angle Triangles: isosoles triangle, scalene triangle, equadrital triangle, right triangle, acute triangle, obtuse triangle
Measure it with a protractor.
60o
60o
60.
if the angle at a equals X then the angle at b equals X+40 and the angle at c equals X+20 the sum of the angels in a triangle is 360 degrees so: X + X+40 + X+20 = 360 3X + 60 = 360 3X = 300 X = 100.
60 degrees
it is 24,0000000
60 degrees