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4 years ago

PLEASE HELP! I will rate 5 stars

Mathematics

1 answer:

yaroslaw [1]4 years ago

5 0

30°

Step-by-step explanation:

$\overline {CA} \cong \overline {BD}... (given) \\\therefore \overset {\frown} {CA} \cong \overset {\frown} {BD}\\$

(equal chords intercepts equal arcs)

$\therefore \overset {\frown} {AB} \cong \overset {\frown} {CD}\\\therefore m \overset {\frown} {AB} =m \overset {\frown} {CD}\\m \overset {\frown} {CD}=30°...(given) \\\therefore m \overset {\frown} {AB} =30°\\$

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