3 years ago

I’m confused on this one

Mathematics

1 answer:

mario62 [17]3 years ago

5 0

Angles B, C, D, and E are inscribed angles and equal 1/2 the intercepted arc.

Angle C (87 degrees) is 1/2 the arc DEB

arc BED = 87 * 2 = 174 degrees

arc DE = 174 - 76 = 98 degrees

arc CB = 360 -60 -98 -76 = 126 degrees

Angle DEB = 1/2 * (60 + 126)

Angle DEB = 1/2 * 186

Angle DEB = 93 degrees

Source 1728.com/circangl.htm

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