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3 years ago

Help with this question, please!! I don't understand!

Mathematics

1 answer:

kondor19780726 [428]3 years ago

3 0

Answer:

FE = 30°

Step-by-step explanation:

arc FGC = arc FG + arc GB + arc BC

220° = 90° + arc GB + 70° . . substitute known values

60° = arc GB . . . . . . . . . . . . . subtract 160°

External angle A is half the difference of arcs EG and GB:

30° = (1/2)(arc FE +90° -60°) . . . substitute known values

60° = arc FE + 30° . . . . . . . . . . . multiply by 2 and simplify

30° = arc FE . . . . . . subtract 30°

_____

The key to this problem is the relationship between external angle A and the measures of the arcs it subtends.

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Answer:

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Step-by-step explanation:

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Use the order of operations.

Note: PEMDAS or BODMAS stands for:

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First, do parentheses.

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$\Longrightarrow: \sf{3+6* 9\div 3-7}$

Do multiply and divide.

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Then, rewrite the problem down.

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Add.

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$\Longrightarrow: \boxed{\sf{14}}$

Therefore, the correct answer is "C. 14".

I hope this helps, let me know if you have any questions.

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