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

x=half

step-by-step explanation:

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation: