8. Given mZ1=6x, m_2=4x, and m23=2x, solve for x and find m2 1.* 6 points
O x=15, m_1= 90
x=18, m_1= 120
x=18, m_1= 90
x=15, mZ1= 120
This is a required question

Explanation:

We know that,

<1 + <2 + <3 = 180°

12x = 180°

X = 15°

m <1 = 6 * 15 = 90°

heat from the core of the earth causes convection currents to occur in the mantle. these currents slowly move the crust around.