All SAT II Math II Resources
Example Questions
Example Question #13 : Finding Angles
If two angles of a triangle are radians, what must be the other angle in degrees?
Every pi radians equal 180 degrees.
We can choose to convert the radians to degrees first.
The sum of these two angles are:
Subtract this value from to determine the third angle.
The answer is:
Example Question #1 : Analyzing Figures
Refer to the above diagram. Which of the following is not a valid name for ?
All of the other choices give valid names for the angle.
is the correct choice. A single letter - the vertex - can be used for an angle if and only if that angle is the only one with that vertex. This is not the case here. The three-letter names in the other choices all follow the convention of the middle letter being vertex and each of the other two letters being points on a different side of the angle.
Example Question #371 : Sat Subject Test In Math Ii
Use the rules of triangles to solve for x and y.
x=30, y=60
x=60, y=30
x=30, y=30
x=45, y=45
x=60, y=30
Using the rules of triangles and lines we know that the degree of a straight line is 180. Knowing this we can find x by creating and solving the following equation:
Now using the fact that the interior angles of a triangle add to 180 we can create the following equation and solve for y:
Example Question #372 : Sat Subject Test In Math Ii
Use the facts of circles to solve for x and y.
x=10, y=30
x=39.5, y=11
x=11, y= 39.5
x=13, y=10
x=11, y= 39.5
In this question we use the rule that oppisite angles are congruent and a line is 180 degrees. Knowing these two facts we can first solve for x then solve for y.
Then:
Example Question #71 : Geometry
Solve for x and y using the rules of quadrilateral
x=2, y=4
x=6, y=10
x=6, y=9
x=9, y=6
x=6, y=9
By using the rules of quadrilaterals we know that oppisite sides are congruent on a rhombus. Therefore, we set up an equation to solve for x. Then we will use that number and substitute it in for x and solve for y.
Example Question #4 : Analyzing Figures
Chords and intersect at point . is twice as long as ; and .
Give the length of .
If we let , then .
The figure referenced is below (not drawn to scale):
If two chords intersect inside the circle, then the cut each other so that for each chord, the product of the lengths of the two parts is the same; in other words,
Setting , and solving for :
Taking the positive square root of both sides:
,
the correct length of .
Example Question #72 : Geometry
Which of the following describes a triangle with sides of length 9 feet, 4 yards, and 180 inches?
The triangle is acute and scalene.
The triangle is right and scalene.
The triangle is right and isosceles, but not equilateral.
The triangle is acute and isosceles, but not equilateral.
The triangle is acute and equilateral.
The triangle is right and scalene.
3 feet make a yard, so 9 feet is equal to 3 yards. 36 inches make a yard, so 180 inches is equal to yards. That makes this a 3-4-5 triangle. 3-4-5 is a well-known Pythagorean triple; that is, they have the relationship
and any triangle with these three sidelengths is a right triangle. Also, since the three sides are of different lengths, the triangle is scalene.
The correct response is that the triangle is right and scalene.
Example Question #73 : Geometry
Which of the following describes a triangle with sides of length two yards, eight feet, and ten feet?
The triangle is right and scalene.
The triangle cannot exist.
The triangle is acute and isosceles.
The triangle is acute and scalene.
The triangle is right and isosceles.
The triangle is right and scalene.
Two yards is equal to six feet. The sidelengths are 6, 8, and 10, which form a well-known Pythagorean triple with the relationship
The triangle is therefore right. Since no two sides have the same length, it is also scalene.
Example Question #72 : Geometry
The above figure shows a square garden (in green) surrounded by a dirt path feet wide throughout. Which of the following expressions gives the distance, in feet, from one corner of the garden to the opposite corner?
The sidelength of the garden is feet less than that of the entire lot - that is, . Since the garden is square, the path from one corner to the other is a diagonal of a square, which has length times the sidelength. This is
feet.
Example Question #4 : Other 2 Dimensional Geometry
The above figure shows a square garden (in green) surrounded by a dirt path six feet wide throughout. Which of the following expressions gives the distance, in feet, from one corner of the garden to the opposite corner?
The sidelength of the garden is less than that of the entire lot - that is, . Since the garden is square, the path from one corner to the other is a diagonal of a square, which has length times the sidelength. This is
feet.