# Marina Sinitsky

• ### Parallelogram change conditions while construction

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Marina Sinitsky

• ### Rigid kite instead of dynamic one

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Marina Sinitsky

• ### Rectangle with a given perimeter and a diagonal -– “try and change”

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Marina Sinitsky

• ### Rectangle with a given sum a+b+d and an angle between a side and a diagonal

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Marina Sinitsky

• ### Point-Point-Circle Apollonius problem

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Marina Sinitsky

• ### Rectangle with a given perimeter and a diagonal - “try and change”

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Marina Sinitsky

• ### Rectangle with a given perimeter and a diagonal – "solid tools"

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Marina Sinitsky

• ### A tangent line to a circle

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Marina Sinitsky

• ### Rectangle with a given sum a+b+d and angle between a side and a diagonal

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Marina Sinitsky

• ### Inscribing a rectangle of a given perimeter into a triangle

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Marina Sinitsky

• ### Inscribing a square into a triangle

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Marina Sinitsky

• ### Inscribing a rhombus into a parallelogram 'by definition’

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Marina Sinitsky

• ### Inscribing a rhombus into a parallelogram - "classic" construction

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Marina Sinitsky

• ### Route with a bridge

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Marina Sinitsky

• ### rhombus with 2 equal sides and parallel sides

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Marina Sinitsky

• ### Right Trapezoid with one fixed base

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Marina Sinitsky

• ### Kite with right angle

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Marina Sinitsky

• ### "Kite" with only 1 pair of equal adjacent sides

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Marina Sinitsky

• ### "parallelogram" with only 2 equal opposite sides

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Marina Sinitsky

• ### "rhombus" with only 3 equal sides

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Marina Sinitsky

• ### Rhombus as parallelogram with 2 fixed equal sides

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Marina Sinitsky

• ### Rhombus with fixed angles

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Marina Sinitsky

• ### parallelogram with pair of fixed sides

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Marina Sinitsky

• ### trapezoid with 2 fixed vertices

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Marina Sinitsky