3 years ago

A circle has an arc whose measure is 80° and whose length is 88. What is the diameter of the circle?

Mathematics

2 answers:

shepuryov [24]3 years ago

7 0

Answer:

length of arc=80/360×2πr

88×360=80×2×22/7×r

31680×7/(80×2×22)=r

r=221760/3520=63

diameter=2r=2×63=126

drek231 [11]3 years ago

3 0

369
Step-by-step explanation:
Arc length=(π*diameter)*(angle/360°)
88π=π*diameter*80°/360°
diameter=369

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