Answer:

5.) v = 2411.52m³

6.) 60cm³

7.) 28.26cm³

8.) 3168cm³

9.) 3052.08m³

10.) 602.88cm³

Step-by-step explanation:

5. v = πr²h

π = 3.14 (always) r = 8m h = 12m

Finding v.

v = (3.14)(8)²(12)

v = (3.14)(64)(12)

v = (3.14)(768)

v = 2411.52m³

6. v = b(h/3)

b = 18cm h = 10cm

Finding v.

v = (18)(10/3)

v = 180/3

v = 60cm³

7. v = πr²h/3

d = 3cm h = 12cm

Finding r.

r = d/2 ⇨ 3/2

r = 1.5cm

Finding v.

v = πr²h/3

v = (3.14)(1.5)²(12/3)

v = (3.14)(2.25)(12/3)

v = (3.14)(2.25)(4)

v = (3.14)(9)

v = 28.26cm³

8.) v = lwh

l = 22cm w = 9cm h = 16cm

Finding v.

v = (22)(9)(16)

v = (22)(144)

v = 3168cm³

9.) v = 4/3πr³

r = 9m

Finding v.

v = (4/3)(3.14)(9)³

v = (4/3)(3.14)(729)

v = (4/3)(2289.06)

v = 9156.24/3

v = 3052.08m³

10.) v = πr²h

d = 8cm h = 12cm

Finding r.

r = d/2 ⇨ 8/2

r = 4cm

Finding v.

v = πr²h

v = (3.14)(4)²(12)

v = (3.14)(16)(12)

v = (3.14)(192)

v = 602.88cm³

***answers are also in the solutions! they are all in bold letters.***

hope my solutions aren't that messy! :))