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Andrei [34K]
3 years ago
7

PLease help! this is geometry circles stuff

Mathematics
1 answer:
melamori03 [73]3 years ago
4 0

Answer:

15 degreese

Step-by-step explanation:

Given AOB 30 - has to make angle DOB 150 cause that be 180 since DA is the diameter

Also they say DE is the same as EK - 30

now EKA is 180 but you got to subtract that EK 30 = 150

to find C you do 1/2 ( ABD - KA )

1/2 (180 - 150)

is 15

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