contestada

Given: mORP = 80°
mORN = (3x + 10)°
Prove: x = 30

Which statement could be used in step 2 when proving x = 30?

A. ORP and ORN are a linear pair
B. ORP and ORN are vertical angles
C. 80 = 3x +10
D. x = 30

Given mORP 80 mORN 3x 10 Prove x 30 Which statement could be used in step 2 when proving x 30 A ORP and ORN are a linear pair B ORP and ORN are vertical angles class=
Given mORP 80 mORN 3x 10 Prove x 30 Which statement could be used in step 2 when proving x 30 A ORP and ORN are a linear pair B ORP and ORN are vertical angles class=

Respuesta :

calculista
we know that
A linear pair is a pair of adjacent angles formed when two lines intersect.
The two angles of a linear pair are always supplementary , which means their measures add up to 180°
so
ORP and ORN are a linear pair
mORP+ mORN = 180°
80°+ (3x + 10)°=180°
3x=180°-90°
x=90°/3
x=30°

therefore

the answer is the option 
A. ORP and ORN are a linear pair
s129087
The Correct answer would be A.

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