Step-by-step explanation:
Number 1
A = πr²
π=3.14
r= 10cm
Area of circle A = 3.14 x 10²
Aa= 314 cm². ANSWER
r=half of radius of Circle A = 5cm
Area of circle B= 3.14 x 5²
Ab= 78.5 cm². ANSWER
The area of Circle A is larger than of Circle B. ANSWER
Number 2
r= 12cm
A= 3.14 x 12²
A= 452.16 cm². ANSWER
one hour is equivalent to whole circle
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Step-by-step explanation:
Number 1
A = πr²
π=3.14
r= 10cm
Area of circle A = 3.14 x 10²
Aa= 314 cm². ANSWER
r=half of radius of Circle A = 5cm
Area of circle B= 3.14 x 5²
Ab= 78.5 cm². ANSWER
The area of Circle A is larger than of Circle B. ANSWER
Number 2
A = πr²
π=3.14
r= 12cm
A= 3.14 x 12²
A= 452.16 cm². ANSWER
one hour is equivalent to whole circle