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If angle DCA measures 50 degrees, what does angle ACB measure?

A.140
B.90
C.40

#2.If angle ACD measures 60 degrees, what does angle ACB measure?

A.15
B.30
C.150

If angle DCA measures 50 degrees what does angle ACB measure A140 B90 C40 2If angle ACD measures 60 degrees what does angle ACB measure A15 B30 C150 class=
If angle DCA measures 50 degrees what does angle ACB measure A140 B90 C40 2If angle ACD measures 60 degrees what does angle ACB measure A15 B30 C150 class=

Respuesta :

Matheng

Answer:

Part 1:

Angle DCB is a right angle.

So, angle DCA + angle ACB = 90

Angle ACB = 90 - angle DCA = 90-50=40

Answer is option C. 40

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Part 2:

Angle DCB is a right angle.

So, angle DCA + angle ACB = 90

Angle ACB = 90 - angle DCA = 90-60=30

Answer is option B. 30

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