2. The shape of the object is cylinder; therefore, use the formula of it which is πr²h. To solve, just substitute its values to the formula. In the problem, the given are height and diameter. To acquire the radius, just divide the diameter by 2 (40/2 = 20). Now, we have the radius which is 20 cm. Let's now solve it.
= 81681.6 - This is the overall volume of the drum but the problem asks to find the half-filled with water volume. With that in mind, divide the volume into 2.
= 81681.6/2
= 40840.8 cm³ - The final answer.
3. The shape of the dice is cube. To solve for its volume use this formula: a³. To get the volume, just substitute the given side/edge to the formula.
Volume = a³
= (18)³ = 18 x 18 x 18
= 5832 cm³ - The final answer.
4. The shape of the aquarium is rectangular prism; therefore, use the formula of it which is l x w x h. To get the volume of the aquarium with the given dimensions, substitute them to the given formula.
Volume = l x w x h
= 2.05 x 1.6 x 0.8
= 2.624 m³ - The final answer.
5. The shape of the chocolate bar is triangular prism; now, use the formula of the volume of triangular prism which is 1/2 x l x w x h. To get the answer, substitute the values to the formula.
Answers & Comments
Answer:
4. 26.2403
Step-by-step explanation:
lxwxh
2.05x1.6x0.8
32.80x0.8
=26.240m3
Answer:
2. 40840.8 cm³
3. 5832 cm³
4. 2.624 m³
5. 150 cm³
Step-by-step explanation:
2. The shape of the object is cylinder; therefore, use the formula of it which is πr²h. To solve, just substitute its values to the formula. In the problem, the given are height and diameter. To acquire the radius, just divide the diameter by 2 (40/2 = 20). Now, we have the radius which is 20 cm. Let's now solve it.
Volume = πr²h
= (3.1416)(20)²(65)
= (3.1416)(400)(65)
= 81681.6 - This is the overall volume of the drum but the problem asks to find the half-filled with water volume. With that in mind, divide the volume into 2.
= 81681.6/2
= 40840.8 cm³ - The final answer.
3. The shape of the dice is cube. To solve for its volume use this formula: a³. To get the volume, just substitute the given side/edge to the formula.
Volume = a³
= (18)³
= 18 x 18 x 18
= 5832 cm³ - The final answer.
4. The shape of the aquarium is rectangular prism; therefore, use the formula of it which is l x w x h. To get the volume of the aquarium with the given dimensions, substitute them to the given formula.
Volume = l x w x h
= 2.05 x 1.6 x 0.8
= 2.624 m³ - The final answer.
5. The shape of the chocolate bar is triangular prism; now, use the formula of the volume of triangular prism which is 1/2 x l x w x h. To get the answer, substitute the values to the formula.
Volume = 1/2 x l x w x h
= 1/2 x 15 x 4 x 5
= 150 cm³ - The final answer.
Goodluck with your Math Journey! :))