How to calculate the area of building exterior wall Given the building area, how to calculate the external wall area and the internal wall area

According to the net length of the wall multiplied by the net height as shown in the design drawing, the area of the door and window openings and single hole above 0.3 square meter shall be deducted

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1. How to calculate the external wall area of the building?
2. How much is the building area multiplied by the actual area of the external wall
3. The area of artificial leveling site is calculated by adding 2m to each side of the outer wall sideline The area of artificial leveling site is calculated by adding 2m to each side of the outer wall sideline. How can the formula s = s bottom + 2 × l outside + 16 be calculated? There is also excavation and sloping foundation pit How can the formula v = (a + 2C + KH) * (B + 2C + KH) * H + 1 / 3K * k * h * h * H be calculated A: Length of foundation cushion B: Width of foundation cushion C: Working face width K: Grading factor H: Earth excavation depth
4. All the formulas for area?
5. Can you tell me all about the area formula
6. Calculation formula of underground building area There is a project in Longling County, Yunnan Province. The known land area is 8 mu, the building density is 40%, the aboveground building area is 6400m2, the plot ratio is 1.2, and the green space rate is 35%. It is a multi-storey 3F. How to calculate the underground building area in the investment estimation?
7. Do you know how to calculate the floor area by floor area ratio? Please provide a formula! Plot ratio = building area △ floor area Building area = floor area × plot ratio Is this company right?
8. The teaching building covers an area of 660 square meters, about 3 / 40 of the total area of the campus. What is the total area of the campus
9. What is the area of gardens and famous buildings in China Please let me know if you know ha-ha Ha ha ha
10. A playground runway is a rectangle in the middle, 110 meters long and 50 meters wide. There are six runways, 1.2 meters each. How to find the area
11. Do you calculate the building area of exterior wall steps and corridors?
12. How to calculate the external wall area
13. The building area is 80 square meters. How much is the practical area?
14. We know that the total area is 9 square meters, distributed according to the ratio of 4:3. How many meters are the length and width, and how to calculate with the formula?
15. Know that the actual area of the house is 136 square meters, if 70% of the housing rate to calculate the building area should be how much? This formula is how to calculate
16. The total area of the house is 195 square meters, divided into three rooms, the width of each room is 4.2. How much is the length of each room? How much is the area of a single room? Thank you
17. How large is the area of a room and the formula The height is 2.3 meters It's 3.7 meters deep The width is 3.9 meters What's the area
18. A house wants to know how many square it is, and is there any formula to calculate it What I want to ask is, if I buy a house, the developer says it is 64 square meters. How can I know it is 64 square meters? Is there any formula? Can you tell me a little bit? I really want to know how to calculate it
19. If the house is 50 square meters, how to calculate it
20. What are the formulas for calculating the building area of the corridor in the hall How to calculate