New SAT Math - Calculator : New SAT Math - Calculator

Study concepts, example questions & explanations for New SAT Math - Calculator

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Example Questions

Example Question #561 : New Sat

Are these triangles similar? If so, state the scale factor.

Similar tri 4

Possible Answers:

Yes - scale factor

Yes - scale factor

Yes - scale factor

No, they are not similar

Not enough information

Correct answer:

No, they are not similar

Explanation:

Based on their positions relative to the congruent angles, and their relative lengths, we can see that 1.5 corresponds to 6, and 8 corresponds to 30. If the ratios of corresponding sides are equal, then the triangles are congruent: 

We can compare these in a couple different ways. One would be to cross-multiply:

These triangles are not similar.

 

Example Question #1 : Radians And Conversions

Change  angle to degrees.

Possible Answers:

Correct answer:

Explanation:

In order to change an angle into degrees, you must multiply the radian by .

Therefore, to solve:

Example Question #1 : Radians

Give in radians:

 

Possible Answers:

Correct answer:

Explanation:

First we need to convert degrees to radians by multiplying by :

 

 

Now we can write:

 

 

Example Question #561 : New Sat

Give in radians:

 

Possible Answers:

Correct answer:

Explanation:

First we need to convert degrees to radians by multiplying by :

 

 

Now we can write:

 

Example Question #1 : Radians And Conversions

Give in degrees:

 

Possible Answers:

Correct answer:

Explanation:

First we can find in radians:

 

 

To change radians to degrees we need to multiply radians by . So we can write:

 

 

Example Question #1 : Circles

Give in degrees:

 

Possible Answers:

Correct answer:

Explanation:

First we can find in radians:

 

To change radians to degrees we need to multiply radians by . So we can write:

 

Example Question #1 : Radians

Give in radians:

 

Possible Answers:

Correct answer:

Explanation:

First we need to convert to radians by multiplying by :

 

 

Now we can solve the following equation for :

 

Example Question #1 : Circles

Give in degrees:

 

Possible Answers:

Correct answer:

Explanation:

First we can find in radians:

 

To change radians to degrees we need to multiply radians by . So we can write:

 

Example Question #1 : Circles

Convert the angle  into degrees.

Possible Answers:

Correct answer:

Explanation:

To convert radians to degrees, use the conversion .

In this case:

Example Question #1 : Radians And Conversions

How many radians are in ?

Possible Answers:

Correct answer:

Explanation:

Since, we can solve by setting up a proportion:

Cross-multiply and solve.

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