Question

HELP ME PLEASE IVE BEEN STRUGGLING WITH THIS FOR SO LONG

Answer 1

m∠ACE = 90°

Explanation:

Figure Interpretation:

m∠CBA + m∠CDE = 180

m∠BCA = (180-m∠CBA)/2

m∠DCE = (180-m∠CDE)/2

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Then

m∠BCA + m∠DCE = (180-m∠CBA)/2 + (180-m∠CDE)/2

= [360-(m∠CBA+m∠CDE)]/2

= [360 - 180]/2

= 90

finally,

m∠ACE= 180 - (m∠BCA + m∠DCE)

= 180 - 90

= 90