Step-by-step explanation:
Note: radius (r)= d ÷ 2
1. A=π[tex]r^{2}[/tex]
= (3.14) (15)²
=(3.14) (225)
= 706.5 cm²
2. A=π[tex]r^{2}[/tex]
= (3.14) (18)²
=(3.14) (324)
= 1017.36 in²
3. A=π[tex]r^{2}[/tex]
= (3.14) (25)²
=(3.14) (156.25)
= 1962.5 cm²
4. A=π[tex]r^{2}[/tex]
= (3.14) (10)²
=(3.14) (100)
= 314 cm²
5. A=π[tex]r^{2}[/tex]
= (3.14) (15)²
=(3.14) (225)
= 706.5 mm²
6. A=π[tex]r^{2}[/tex]
= (3.14) (23)²
=(3.14) (529)
= 1661.06 cm²
