Answer:
difference between the areas = 75.31m²
aprroximately = 75m²
Step-by-step explanation:
in order to calculate the difference between the areas of a circular target region with radius 5meters and 7meters will simply implies that we subtract the calculated area of radius A - calculated area of radius B
SOLUTION
recall,
area of a circle A = πr²
area of a circle A = 3.14 × (7)²
area of a circle A = 3.14 x 49
area of a circle A = 153.86m²
also,
area of a circle B = πR²
area of a circle B = 3.14 X (5)²
area of a circle B = 3.142 X 25
area of a circle B = 78.55m²
difference between the areas = (153.86 - 78.55)m²
difference between the areas = 75.31m² approximately 75m²
