Step 6 Trace the sketch of the elephant using a pen. Step 7 Use rubber eraser to remove the penciled grid. Step 8 This is twice as large as the original picture in step 1. Questions: 1. What insight can you share about the grid drawing activity? 2. Do you agree that the use of grid makes it possible for everyone to draw? 3. Is the enlarged version of the picture in step 8 similar to the original one in step 1? Explain. 4. What is the scale used in enlarging the original into the new one? Why? The scale used to enlarge the original picture in this activity is of the side of the smallest square in the new grid is. picture. 5. What scale will you use to enlarge a picture three times the size of the original? The scale to use to enlarge a picture three times its size is because the length 1 that of the grid of the original 6. A large picture is on a square grid. Each side of the smallest square of the grid measures 5 length of the side of each smallest square of the new grid that you will use? centimeters. You would like to reduce the size of the picture by 20%. What would be the To reduce the size of a picture by 20%, it means that the size of the new picture is only. % of the size of the original. Therefore, the length 1 of the side of the smallest square in the new grid is the product of and 5 cm. Hence, length 1 is equal to cm. 7. A picture is on a square grid. Each side of the smallest square of the grid measures 10 millimeters. You would like to increase the size of the picture by 30%. What would be the length of the side of each smallest square of the new grid that you will use? To increase the size of a picture by 30%, it means that the size of the new picture is % of the size of the original. Therefore, the length 1 of the side of the smallest square in the new grid is the product of and 10 mm. Hence, length I is equal to cm. 8. Following steps 4 to 7 in grid drawing, draw the pictures of the dog and the cat on a piece of bond paper. See to it that your drawing of the dog is half as large as the original and your drawing of the cat is 50% larger than the original. You may color your drawing.

Step 6 Trace the sketch of the elephant using a pen. Step 7 Use rubber eraser to remove the penciled grid. Step 8 This is twice as large as the original picture in step 1. Questions: 1. What insight can you share about the grid drawing activity? 2. Do you agree that the use of grid makes it possible for everyone to draw? 3. Is the enlarged version of the picture in step 8 similar to the original one in step 1? Explain. 4. What is the scale used in enlarging the original into the new one? Why? The scale used to enlarge the original picture in this activity is of the side of the smallest square in the new grid is. picture. 5. What scale will you use to enlarge a picture three times the size of the original? The scale to use to enlarge a picture three times its size is because the length 1 that of the grid of the original 6. A large picture is on a square grid. Each side of the smallest square of the grid measures 5 length of the side of each smallest square of the new grid that you will use? centimeters. You would like to reduce the size of the picture by 20%. What would be the To reduce the size of a picture by 20%, it means that the size of the new picture is only. % of the size of the original. Therefore, the length 1 of the side of the smallest square in the new grid is the product of and 5 cm. Hence, length 1 is equal to cm. 7. A picture is on a square grid. Each side of the smallest square of the grid measures 10 millimeters. You would like to increase the size of the picture by 30%. What would be the length of the side of each smallest square of the new grid that you will use? To increase the size of a picture by 30%, it means that the size of the new picture is % of the size of the original. Therefore, the length 1 of the side of the smallest square in the new grid is the product of and 10 mm. Hence, length I is equal to cm. 8. Following steps 4 to 7 in grid drawing, draw the pictures of the dog and the cat on a piece of bond paper. See to it that your drawing of the dog is half as large as the original and your drawing of the cat is 50% larger than the original. You may color your drawing.

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter63: Volumes Of Pyramids And Cones

Section: Chapter Questions

Problem 34A

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