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3 years ago

HELPPPPPPPPPPP PLZZZZZZZZZZZZZZZZZZZZ!!!!!!!!!!!!

Mathematics

2 answers:

natulia [17]3 years ago

6 0

ANSWER:
(2x+1)+25degrees=10x+2( Exterior angle property)
2x+1+25=10x+2
2x+26=10x+2
26-2=10x-2x
24=8x
We can write it as -
8x=24
x=24/8
x=3
The last option is the right answer.
HOPE IT HELPS!!!!
PLEASE MARK BRAINLIEST!!!!!
ALL THE BEST FOR YOUR ASSIGNMENT!!!!!

n200080 [17]3 years ago

4 0

Answer:

x = 3

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

10x + 2 is an exterior angle of the triangle, thus

10x + 2 = 2x + 1 + 25

10x + 2 = 2x + 26 ( subtract 2x from both sides )

8x + 2 = 26 ( subtract 2 from both sides )

8x = 24 ( divide both sides by 8 )

x = 3

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