The image appears to show a roof plan for a building, with the following instructions and dimensions for solving various geometric problems. These are related to areas, lengths of roof ridges, gutter lengths, and roof angles. The instructions are written in Indonesian, and here’s a general breakdown:

Problems to Solve:

1. Hitung luas atap A~F: Calculate the total roof area from sections A to F.
2. Hitung panjang nok N1~6: Calculate the lengths of the ridges labeled N1 to N6.
3. Hitung panjang talang T1~2: Calculate the lengths of the gutters labeled T1 and T2.
4. Hitung panjang listplang: Calculate the length of the roof edge (listplank).
5. Hitung sudut nok pojok: Calculate the angle at the roof corners.

Additional Information:

• Catatan: The note mentions that the lengths of the sloped edges must be calculated using trigonometry and the Pythagorean theorem. There is also a triangular model with a 30° angle, implying a standard roof slope angle.

Main Dimensions:

• The overall width is 1600 mm, and the depth of the building is 800 mm.
• Side extensions are marked, with notable dimensions like 50 mm eaves and 200 mm extensions.
• Roof slopes are shown with a pitch of 30°, and some dimensions for the side roofs are 450 mm, 250 mm vertically.

Approach:

1. Roof Area Calculation: Break down each section (A to F), considering trapezoidal or triangular shapes depending on the roof's slope.
2. Ridge Lengths: Use the given plan dimensions and the slope angle (30°) to calculate the 3D ridge lengths using trigonometric relationships.
3. Gutter Lengths: These are the horizontal lines at the lower edges of the roof.
4. Edge Length (Listplang): The perimeter along the roof edges, which includes straight and sloped sections.
5. Corner Angle: Likely a combination of roof slope and plan geometry to calculate the horizontal and vertical angles.

Would you like me to start solving these step-by-step? Let me know which problem you'd like to focus on first or if you'd like an explanation of any of the above concepts.

Here are 5 follow-up questions:

1. Would you like to calculate the area of just one section or the entire roof area?
2. Should we start by calculating the sloping ridge lengths (nok)?
3. Do you need help applying the Pythagorean theorem for the roof angles?
4. Would you like a step-by-step breakdown of how to calculate the gutter lengths?
5. Would you like to confirm the trigonometric relationships for the roof pitch?

Tip:

When calculating sloping surfaces or ridges, always remember to project the horizontal dimensions onto the sloped surface using the cosine or sine of the roof angle.