Answer:
value of x = 20°
Step-by-step explanation:
the given pair of angles are pair of co - interior angles
So, their sum = 180°
=》3x - 10° + 5x + 30° = 180°
=》8x + 20° = 180°
=》8x = 180° - 20°
=》8x = 160°
=》x = 20°
b
Plzzzz answer fast......
d
13.8 cm
the sides of the triangle measure 3.6, 5.7,4.5cm?
So, we have
perimeter is 3.6 + 5.7 + 4.5
