From what I'm understanding of these questions, the biggest thing you need to answer these is the formulas for cylinders and triangular prisms. I'm not sure what the quantities are for either question so I'm going to work with made up numbers to give examples for the formulas. For number 2 with the cylinder, let's consider the formula first:
π × r2 × h <em>OR </em>pi (3.14) times radius squared times height
If you have the height and you have pi, all you need to take is the doubled radius (aka multiply it by 2) and plug that back into the formula. For the sake of an example, I'm going to make up the number 2 for the radius and 6 for the height. Here's what that would look like:
r = 2; double it, resulting in 4
pi x 4^2 x 6
3.14 x 16 x 6
= 301.44
Work with the actual numbers you have and you're good to go.
For number 3, reducing something by 1/2 means dividing by 2. Let's consider the formula and then work through another example:
1/2 x b x h x l <em>OR </em> 1/2 times base times height times length
For the sake of an example, I'll use 10 for the height, 15 for the base, and 20 for the length:
h = 10; reduce by 1/2, resulting in 5
1/2 x 15 x 5 x 20
= 750
Plug in your actual quantities, and remember your volume units. Hope this helps!
Answer:
To paint the room with dimension 30 ft by 50 ft by 50 ft is 26.67 gallon
Step-by-step explanation:
Given as :
The Length of wall = L = 50 ft
The width of wall = W = 30 ft
The height of wall = H = 50 ft
Each gallon of paints should cover 300 sq feet
Let the amount o gallon required to paint the room = x
SO, Area of four wall = 2 × ( L + W ) × H
Or, Area of four wall = 2 × ( 50 + 30 ) × 50
Or, Area of four wall = 2 × ( 80 ) × 50
SO, Area of four wall = 8000 ft²
∵ To paint 300 sq ft the amount of paint required = 1 gallon
∴ To paint 8000 sq ft the amount of paint required = 26.67 gallon
Hence ,to paint the room with dimension 30 ft by 50 ft by 50 ft is 26.67 gallon answer
yes yes yes yes yes yes neight
Step-by-step explanation:
1234567891
The product of a number y and 12 or 12 times a number y. These are both equivalent expressions to 12y
1. Similar: all angles are equivalent.
2. Similar: 2 angles and 1 side are equivalent.
3. Not enough information.
4. Not enough information.
5. Not enough information.
6. False.
7. True.
8. True.
9. True.
10. False.
