a triangle sail has a base length of 2.5 meters. the area os the sail is 3.75 square meters. how talk is thw sail?
1 answer:
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Answer:
< BCD = 60°
Step-by-step explanation:
AB || DE = > <DEC = 180° - 130° = 50°
<EDC = 180° - 110° = 70°
< BCD = 180° - (50° + 70°)
= 180° - 120°
= 60°
