Triangle ABC is similar to Triangle DEF, AC=9x, BC=8, DF=18, and EF=x. Which of the following represents the length of AC.
1 answer:
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Answer:
A = 1.5 π in² ≈ 4.7 in²
Step-by-step explanation:
the area (A) of the sector is calculated as
A = area of circle × fraction of circle
= πr² ×
= π × 3² ×
= 9π ×
= 1.5π in²
≈ 4.7 in² ( to the nearest tenth )