Proving the Sum of the Interior Angle Measures of a Triangle Is 180°

Try it

Given y || z

Prove: m25+ m22 + m26 = 180°

Angles Lines Statements Reasons

def. of

def of straight angle

angle addition postulate

alternate interior angles theorem

A

M

2

3

Statements

✓ 1.3 112

2.2125

Reasons

1. given

2. alternate interior angles theorem

4

5

6 7 z

B

С

Look for alternate interior angles

(-1,-0.5)

step-by-step explanation:

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

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