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What belongs in each mystery box?
Every mystery box holds the same value. Make the two sides balance.
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A right-angled triangle has perpendicular sides 64 cm and 120 cm. Find its hypotenuse.
Calculate the hypotenuse of a right-angled triangle from two perpendicular side lengths.
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Featured, challenges & worksheets in Maths
Pythagoras: hypotenuse
Calculate the hypotenuse of a right-angled triangle from two perpendicular side lengths.
Right-triangle trigonometry (SOHCAHTOA)
Apply sine, cosine and tangent ratios (SOHCAHTOA) in right-angled triangles and simplify to lowest terms.
Circle theorems & cyclic quadrilaterals
Apply circle theorems for the angle at the centre (2× circumference angle) and opposite angles in a cyclic quadrilateral.
Stationary & turning points of curves
Set the first derivative dy/dx = 0 to locate the stationary point or minimum turning value of a quadratic curve.