laila5175 laila5175

20-05-2023
Mathematics

contestada

A circle is centered on point B. Points A, C and D lie on its
circumference.
If

A circle is centered on point B Points A C and D lie on its circumference If class=

Respuesta :

mhanifa mhanifa

20-05-2023

Answer:

122°

-------------------

∠ADC and ∠ABC subtend the same arc AC, hence ∠ABC is double the measure of ∠ADC:

m∠ABC = 2*m∠ADC
m∠ABC = 2*61°
m∠ABC = 122°

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