emilybassett1970 emilybassett1970

04-07-2021
Mathematics

contestada

DE is tangent to Circle C at point D.

What is the measure of Enter your answer in the box.

DE is tangent to Circle C at point D What is the measure of Enter your answer in the box class=

Respuesta :

mathstudent55 mathstudent55

05-07-2021

Answer:

39°

Step-by-step explanation:

A radius of a circle (segment CD) drawn to the point of tangency (D) intersects the tangent (line DE) at a 90-deg angle.

That makes m<D = 90.

m<D + m<C + m<E = 180

90 + 51 + m<E = 180

m<E = 39

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