gracemonyak15 gracemonyak15
  • 01-06-2021
  • Mathematics
contestada

Find mEC.
5x - 27)
(2x - 5)
D

Find mEC 5x 27 2x 5 D class=

Respuesta :

akposevictor
akposevictor akposevictor
  • 06-06-2021

Answer:

Arc EC = 58°

Step-by-step explanation:

First, find the value of x.

m<D = ½(arc EC) => Inscribed Angles Theorem

Substitute

2x - 5 = ½(5x - 27)

Multiply both sides by 2

2(2x - 5) = 5x - 27

4x - 10 = 5x - 27

Collect like terms

4x - 5x = 10 - 27

-x = -17

Divide both sides by -1

x = 17

Find arc EC:

Arc EC = 5x - 27

Plug in the value of x

Arc EC = 5(17) - 27 = 85 - 27

Arc EC = 58°

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