The cost of a movie ticket is $19.80. Which expression below represents the cost of 5 movie tickets? A. 5($20.00 + $0.20) B. 5($
2 answers:
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Answer:
≈ 77 cm²
Step-by-step explanation:
The area of the shaded portion is calculated as
area of outer sector - area of inner sector
= (πR² - π r²) × ( R is the outer radius, r is the inner radius )
= (π × 14² - π × 7² ) ×
= (196π - 49π ) ÷ 6
= 147π ÷ 6
≈ 77 cm² ( nearest whole number )