claraqoswald claraqoswald
  • 03-03-2019
  • Mathematics
contestada

in the diagram below, ab and bc are tangent to o. what is the measure of adc

in the diagram below ab and bc are tangent to o what is the measure of adc class=

Respuesta :

Pvpigabriel Pvpigabriel
  • 18-04-2019

Answer:

Step-by-step explanation: 252 apex

Answer Link
throwdolbeau throwdolbeau
  • 07-05-2019

Answer:

The correct option is B. 252°

Step-by-step explanation:

There are 360° in the circle.

So using the relation :

[tex]\frac{\text{(arc ADC - arc AC)}}{2} = \angle ABC[/tex]

⇒ arc ADC - arc AC = 2 × ∠ABC

⇒ arc ADC - 108° = 2 × 72°

⇒ arc ADC - 108° = 144°

⇒ arc ADC = 144° + 108°

⇒ arc ADC = 252°

So, The measure of ∠ADC = 252°

Hence, The correct option is B. 252°

Answer Link

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