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Which of the following could be lengths of the sides of a 30° -60° -90° right triangle? A.) 9 cm, 9 cm, 9√2 cm B.) 10 cm, 20√3 cm, 20 cm, C.) 11 cm, 11√3 cm, 22 cm D.) 7cm, 7√2 cm, 7√3 cm
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Which of the following could be lengths of the sides of a 30° -60° -90° right triangle? A.) 9 cm, 9 cm, 9√2 cm B.) 10 cm, 20√3 cm, 20 cm, C.) 11 cm, 11√3 cm, 22 cm D.) 7cm, 7√2 cm, 7√3 cm

User Casey Benko
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4 votes
since it is a triangle with 90 angle use Pythagorean theory
a^2+b^2=c^2
then if more than two answers were correct check that in this triangle smallest side should be half the hypotenuse
User Phoebe Li
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