haileesprague3173 haileesprague3173

27-07-2020
Mathematics

contestada

Question 8(Multiple Choice Worth 1 points) (07.01 MC) Find the measure of arc DF. Circle A with chords EF and CD that intersect at point G, the measure of arc EC is 5x plus 10 degrees, the measure of angle EGC is 70 degrees, and the measure of arc DF is 11x plus 2 degrees. 50° 90° 100° 140°

Respuesta :

29-07-2020

Answer: 90°

Step-by-step explanation:

As known ∡EGC=(arcEC+arcDF)/2

arcEC+arcDF=70°*2

5x+10+11x+2=140

16x+12=140

16x=128

x=128:16

x=8

So arcDF=11*x+2=11*8+2=90°

Answer Link

balletchick336 balletchick336

22-03-2021

Answer:

90

Step-by-step explanation:

Answer Link

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