Each exterior angle of a regular decagon has a measure of (3x + 6)". What is the value of x?

Mathematics

2 answers:

Oxana [17]3 years ago

7 0

Answer:

B = 10

Step-by-step explanation:

Just took test edg 2020

dedylja [7]3 years ago

4 0

Answer:10

Step-by-step explanation:

Each exterior angle is (3x + 6)°

A decagon has 10 sides

Each exterior angle=360/n

n=number of sides

3x+6=360/10

Cross multiply

10(3x + 6)=360

30x+60=360

Collect like terms

30x=360-60

30x=300

Divide both sides by 30

30x/30=300/30

x=10

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