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Geometry
# Geometry Warmups

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\[ 1^2 + 1^2 + 1^2 + 3^2 + 4^2 + 7^2 + 11^2 = \, ? \]

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Chung Kevin**

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If lines \(l\) and \(m\) are parallel, then what is the value of angle \(x\) (in degrees)?

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Bazmi Farooquee**

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The diagram above shows a large square, whose midpoints are connected up to form a smaller square. We then connect up the midpoints of the smaller square, to obtain the inner shaded square.

What fraction of the large square is shaded?

Note: Give your answer as a decimal to 2 decimal places.

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A K**

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The picture above is a semicircle with diameter \(\overline{AC},\) and \(\overline{AC}\) is perpendicular to \(\overline{BD}.\) It is known that \(AB=4\text{ cm}\) and \(BC=1\text{ cm}.\) If \(BD=x,\) find \(x.\)

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Tunk-Fey Ariawan**

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The clock shown has hands positioned at 5 o'clock. What is the degree measure of angle \(x\)?

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Tech Grids**

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