Shape and Space 4
2 marks · EasyA right-angled triangle has a hypotenuse of 15 cm. One of the other sides is 9 cm. Work out the length of the remaining side.
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12 cm (±0.05)
Also accept: 12.0 cm
Common mistakes: 24 cm (added instead of Pythagoras)
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Marking points
M1 · 1 mark · States or uses:
A1 · 1 mark · Obtains cm (accept 12.0 cm, 12 to 3 s.f.) (follow-through)
Worked solution