For the first exercise, I followed a different methodology. I didn´t use the symmetry tool. Instead, I used the linear sketch pattern to create 4 copies on the X axis and 2 on the Y axis, with a distance of 100 mm from one element to another (50 mm length + 50 mm separation).

Then I used the dimension tool to make sure that every element maintained that measure.

Finally, I used the boundary COLLINEAR for the left vertical lines of the two left squares and COINCIDENT with the origin point.

Sketching excercices process - image 1 - student project

For the second exercice, I first created two circles and used the boundary TANGENT and EQUAL and VERTICAL between the two centerpoints and the origin point. Then, I made their diameter 10 cm.

Then, I created a construction line from the origin point with the measure of 20 cm and made the center point of the circle below COINCIDENT with the upper point of the line.

Thirdly, I used the circular sketch pattern tool and created 8 elements.

Finally, for the horizontal circles I used the constraint HORIZONTAL and then everything went fully defined.

Sketching excercices process - image 2 - student project

For the third exercise, I drew the bigger circle first and then added its measure.

Secondly, I drew the smaller circle using the same center point and added its measure again.

Thirdly, I drew the bigger ellipse with its horizontal points coincident to the bigger circle, and added its measure to the vertical points.

Finally, I drew the small ellipse and then I cut the parts of the smaller circle that were inside of the big ellipse.

Sketching excercices process - image 3 - student project

For the fourth exercise, I created the smaller rectangle and ellipse first with the center on the origin point. Then, I put HORIZONTAL and VERTICAL to the extremes of the ellipse, and then, made them TANGENT with the rectangle.

Secondly, I used the tool EQUIDISTANCE ENTITIES and created an offset rectangle at 15mm from the first one, and then another at 10 mm.

Thirdly, I created the bigger ellipse and followed the same procedure as with the first one; I put HORIZONTAL and VERTICAL to the extremes and made them TANGENT with the bigger rectangle.

Sketching excercices process - image 4 - student project

Marta Z

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