Two congruent squares inside a circle. The extended diagonals meet at the circle circumference. What’s their angle?
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The complicated jet
Tag: square
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The drop shadow
Two congruent squares share a vertex. What’s the angle α?
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The white flags
Three congruent squares and three shared vertices. What fraction is blue?
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The divided diagonal
A square diagonal is divided in three by a 45-degree angle. Two pieces are given, what is the length of the third?
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New Year 2021
Three squares are placed as shown. Given that the green areas are equal, what is the side length of the orange square?
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Domino day
Three congruent rectangles consisting of two squares each are placed as shown. What is the blue area?
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The eye of the beholder
A square and two equilateral triangles inside and touching a circle. What’s the angle α?
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The bowtie
A square and two congruent isosceles triangles with variable top angle. What is the maximum fraction shaded?
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The tip of the iceberg
A triangle with a 45° angle is placed inside a square as shown. What’s the area proportion of parts A and B?
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The radio telescope
A square contains two triangles. What fraction of the square do they cover?