HOW TO DRAW A REGULAR PENTAGON GIVEN THE LENGTH OF THE SIDE ||Geometrical construction
TLDRThis instructional video guides viewers through the process of drawing a regular pentagon with a given side length. Starting with a horizontal line, the tutorial then involves using a compass to draw circles at both ends of the line with a radius equal to the pentagon's side length. Intersection points are labeled, and additional arcs and lines are drawn to form the pentagon's shape. The video concludes with joining the points to complete the pentagon and offers a free service for solving engineering or technical drawing challenges via WhatsApp.
Takeaways
- 📏 Start by drawing a thick horizontal line with the required length using a T-square and ruler.
- 📐 Use a compass to draw circles with a radius equal to the length of the line at both ends.
- ✏️ Label the points where the circles intersect to establish the vertices of the pentagon.
- 🔄 Ensure the length of the line (AB) is equal to the length of the pentagon's sides.
- 📍 Draw lines through the intersecting points (C and D) to form the first two sides of the pentagon.
- 🔶 Place the compass on point D and draw an arc using the same radius as before.
- 📐 Label the points where the arc intersects the vertical line to find additional vertices.
- 📉 Draw lines through points E and G, and F and G, to complete the pentagon's shape.
- 🔄 Use the compass on point H to draw another arc on the vertical line to find the final vertex.
- 🔗 Join the labeled points (A, B, H, K, D) to complete the pentagon.
- 📝 Dimension the drawing as needed to finalize the technical drawing.
- 🎉 The video offers help with engineering or technical drawing assignments via WhatsApp for free.
Q & A
What is the main topic of the video?
-The video is about teaching the process of drawing a regular pentagon given the length of its sides.
What tool is initially suggested for drawing a horizontal line?
-A T-square is suggested to support a ruler for drawing a horizontal line.
How should the line be labeled after drawing it?
-The script does not specify how to label the line after drawing it, but typically, it would be labeled with a letter or number for reference.
What is the purpose of drawing circles (cycles) at both ends of the line?
-The purpose of drawing circles is to find the points where the pentagon's sides will intersect, creating the vertices of the pentagon.
How does the length of the line AB relate to the sides of the pentagon?
-The length of the line AB should be equal to the length of the sides of the pentagon being drawn.
What is the significance of labeling the intersection points of the cycles?
-Labeling the intersection points helps in identifying the vertices of the pentagon and ensures accuracy in the drawing.
What compass setting should be used for drawing arcs in the process?
-The same radius used for drawing the initial cycles should be used for drawing arcs.
How many points are labeled at the end of drawing the pentagon?
-Points A, B, H, K, and D are labeled at the corners of the pentagon.
What is the final step to obtain the pentagon after joining the points?
-The final step is to join points A, B, H, K, and D to complete the drawing of the pentagon.
How can viewers get help with their engineering or technical drawing assignments?
-Viewers can send their questions to the WhatsApp number displayed in the video, and the creator will solve the questions and send a video solution for free.
What is the offer mentioned in the video for viewers who need help with their assignments?
-The offer is to solve viewers' engineering or technical drawing questions and provide a video solution at no cost.
Outlines
📏 Drawing a Regular Pentagon
This paragraph provides a step-by-step guide on how to draw a regular pentagon with a given side length. It starts with drawing a horizontal line using a T-square and ruler, labeling it, and then using a compass to draw circles with a radius equal to the side length of the pentagon at both ends of the line. The intersection points of these circles are labeled, and lines are drawn through them to form the pentagon's shape. The process involves drawing arcs and additional lines to complete the pentagon, with a focus on using the same radius consistently. The final step is to join the points to form the pentagon and dimension the drawing. The video also offers help for any engineering or technical drawing assignments via a WhatsApp number provided.
Mindmap
Keywords
💡Regular Pentagon
💡T-square
💡Compass
💡Radius
💡Intersect
💡Arc
💡Vertical Line
💡Dimension
💡Technical Drawing
Highlights
Introduction to the tutorial on drawing a regular pentagon with given side length.
Using a T-square and ruler to draw a thick horizontal line.
Labeling the line with the required length.
Drawing a circle with a radius equal to the line's length using a compass.
Placing the compass on both ends of the line to draw two circles.
Ensuring the line's length is equal to the pentagon's side length.
Labeling the intersection points of the circles.
Drawing a line through points C and D where the circles intersect.
Using the same radius to draw an arc from point D.
Labeling the points where the arc intersects the vertical line.
Drawing lines through points E, F, and G to form the pentagon's shape.
Using the compass on point H to draw another arc on the vertical line.
Labeling the intersection point of the new arc with the vertical line.
Joining points A, B, H, K, and D to complete the pentagon.
Dimensioning the drawing as the final step.
Invitation to like the video and subscribe for more tutorials.
Offering free assistance with engineering or technical drawing assignments.
Providing a WhatsApp number for viewers to send their questions.
Closing with a musical note.
Transcripts
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