10-05_task.docx - Name u2002 u2002 u2002 u2002...

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Name: Date: School: Facilitator: 10.05 Angle Relationships in a Circle Use the diagram below to answer problems 1-6. mCE = 70 ° m FE = 30 ° FGC = 60 ° 1. m EDC = 35° 2. arc FC = ° 3. m FCD = 23.2 ° 4. arc AB = ° 5. m BFC = 210° 6. Find m AEC if E is the center of the circle show below: ° Step 1: Write the formula you will use angle BED = arcBD Step 2: Substitute the given values. (2x + 30) = (8x - 6) Step 3: Solve the equation for x. x=6 Step 4: Substitute x into the given value for m AEC.
For problems 7 – 9, write the formula that must be used to solve for x. Then solve for x. Example: Equation:

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