Geometry and TrigonometryEasySine of an angle in a right triangle
Geometry and Trigonometry practice question
In right triangle ABC, the right angle is at C. If BC = 6 and AB = 10, what is sin A?
Answer: 3/5 or .6 or 0.6
sin A is the opposite side over the hypotenuse: BC/AB = 6/10 = 3/5.
Common wrong answers
- If you answered 4/5
- 4/5 is cos A.
- If you answered 3/4
- 3/4 is tan A.
- If you answered 5/3
- 5/3 inverts the ratio.
More Geometry and Trigonometry questions
- Easy
Two angles of a triangle measure 40° and 75°. What is the measure of the third angle? - Easy
A triangle has a base of 10 and a height of 6. What is its area? - Easy
In a 30°-60°-90° right triangle, the shorter leg (opposite the 30° angle) has length 6. What is the length of … - Easy
A rectangle has a length of 8 and a width of 3. What is its perimeter? - Easy
A closed rectangular box has a length of 5 inches, a width of 4 inches, and a height of 3 inches. What is the … - Easy
In the xy-plane, a circle has center (2, −5) and radius 3. Which equation represents this circle?
Not affiliated with the College Board. SAT is a trademark of the College Board.