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Sagot :
Answer:
- It is assumed you need to find the area of shaded region.
- Results rounded to the nearest hundredth.
#1
Shaded area:
- A = 32² - 16*π*(32/8)² = 219.75 cm²
#2
Shaded area:
- A = π*2² - 2*π*(2/2)² = 6.28 cm²
219.75cm²
3.14cm²
Answer:
Solution given:
1.
[r]radius of each circle =32/8=4cm
[l]length of square=32cm
Area of shaded region =area of square- area of 16 circle=l²-11*πr²=32²-16*π*4²=219.75cm²
Step-by-step explanation:
radius for big circle [R]=2cm
radius for small circle [r]=1cm
area of shaded region=area of big semi circle -2 area of semi small circle
=½πR²-2*½πr²
=½*π*2²-π*1²
=2π-π
=π=3.14cm²
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