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VMariaS [17]
3 years ago
7

A. 30° B. 40° C. 50 D. 60° pls help

Mathematics
1 answer:
olga55 [171]3 years ago
8 0

Answer:

D

Step-by-step explanation:

it is because 60 is the estimate of 360 degree census.

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Kipish [7]
All the angles in a circle equal to 360 degrees. So basically just add up all the known values: 23+23+15=61 and then subtract that from 360: 360-61=299.

You can also do 23+23+15+x=360. Adding it all becomes 61+x=360, subtract 61 from both sides of the equation, and you get x=299.

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