A = (πr²) ÷ 2
to find the radius of a diameter, divide the diameter (12) by 2
12 ÷ 2 = 6. so, 6 is the radius.
A = (3.14 × 6²) ÷ 2
A = (3.14 × 36) ÷ 2
A = 113.04 ÷ 2
A = 56.52 dm²
A = (πr²)
to find the radius of a diameter, divide the diameter (6) by 2
6 ÷ 2 = 3. so, 3 is the radius.
#1 Small semicircle area
A = (3.14 × 3²) ÷ 2
A = (3.14 × 9) ÷ 2
A = 28.26 ÷ 2
A = 14.13 dm²
#2 Small semicircle area
14.13 dm² + 14.13 dm² = 28.26 dm²
Area of Big semicircle - Area of two small semicircle = area of the shaded region
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Answers & Comments
Find the Area of the Big Semicircle
A = (πr²) ÷ 2
to find the radius of a diameter, divide the diameter (12) by 2
12 ÷ 2 = 6. so, 6 is the radius.
A = (πr²) ÷ 2
A = (3.14 × 6²) ÷ 2
A = (3.14 × 36) ÷ 2
A = 113.04 ÷ 2
A = 56.52 dm²
Find the Area of the Two small Semicircle
A = (πr²)
to find the radius of a diameter, divide the diameter (6) by 2
6 ÷ 2 = 3. so, 3 is the radius.
#1 Small semicircle area
A = (πr²) ÷ 2
A = (3.14 × 3²) ÷ 2
A = (3.14 × 9) ÷ 2
A = 28.26 ÷ 2
A = 14.13 dm²
#2 Small semicircle area
A = (πr²) ÷ 2
A = (3.14 × 3²) ÷ 2
A = (3.14 × 9) ÷ 2
A = 28.26 ÷ 2
A = 14.13 dm²
14.13 dm² + 14.13 dm² = 28.26 dm²
Find the Area of the Shaded Region
Area of Big semicircle - Area of two small semicircle = area of the shaded region
56.52 dm² - 28.26 dm² = 28.26 dm²
━┈─────────────────────┈━
the area of the shaded region is 28.26dm²
━┈─────────────────────┈━
#CarryOnLearning ^^
#TogetherWeGoFar!
#BrainlyEveryday