Ⲁⲛ⳽ⲱⲉⲅ:
ㅤㅤㅤ➙ 78.5 cm²
Ⲋⲟⳑⳙⲧⳕⲟⲛ :
We are provided 3 circles with 2 circle inside a one big circle . The 2 smaller circles are touching each other. The diameters of the two circles are given as 7 cm and 3 cm. Therefore we can conclude from the figures that the diameter of the larger circle will be equal to the sum of diameters of two smaller circles ,i.e :
ㅤㅤㅤ➙ D = 7 cm + 3 cm
ㅤㅤㅤ➙ D = 10 cm
ㅤㅤㅤ➙ r = D / 2
ㅤㅤㅤ➙ r = 10 / 2
ㅤㅤㅤ➙ r = 5 cm
Area of Circle is given by :
ㅤㅤㅤ ➽ Area = πr²
ㅤㅤㅤ➙ A = 3.14 × 5²
ㅤㅤㅤ➙ A = 3.15 × 25
ㅤㅤㅤ➙ A = 78.5
ㅤㅤㅤ ㅤㅤ~Hence, the area of larger circle is 78.5 cm²!