Answer:
(a) The area of a square with side 9 cm is 81 cm².
(b) The area of a square with side 3.5 cm is 12.25 cm².
Explanation:
The question is:
Find the area of a square with the side of a) 9 cm b) 3 Whole and 1 half cm Please help I need it urgently !!!
Solution:
The area of a square is given by:
![Area=a^(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/8ro280mmq5n0zqh6nkmfule5furzumgj19.png)
Here,
a = length of the side
(a)
The side of a square is, a = 9 cm.
Compute the area of this square as follows:
![Area=a^(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/8ro280mmq5n0zqh6nkmfule5furzumgj19.png)
![=9^(2)\\=9* 9\\=81\ \text{cm}^(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/7ijllpvqvg3ba460lp2okma4rhce5ec86d.png)
Thus, the area of a square with side 9 cm is 81 cm².
(b)
The side of a square is, a = 3.5 cm.
Compute the area of this square as follows:
![Area=a^(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/8ro280mmq5n0zqh6nkmfule5furzumgj19.png)
![=3.5^(2)\\=3.5* 3.5\\=12.25\ \text{cm}^(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/2tzprzu0146thtpmgjh9d8fp6z2m1x7mgp.png)
Thus, the area of a square with side 3.5 cm is 12.25 cm².