Common-Core/ Grade 10
Maths MCQ Based On Right triangle trigonometry check point
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Common-Core Grade 10 - 10 Right triangle trigonometry check point
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The sine (sin) of an acute angle in a right triangle is the ratio of the length of the leg opposite the angle to the length of the hypotenuse.
∠Q and ∠R must be the acute angles in the right triangle. Therefore, they are complementary angles.
Perimeter is sum of all sides
∠M and ∠N must also be complementary angles.
Draw diagram
Show â–³LNM ~ â–³RPQ
Use pythagoras theorem
Trigonometry property
Use inverse properties.
Use sine formula
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