What is the formula for the area of a triangle?
Spring 2022 PSAT Math Practice

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•
Mathematics
•
8th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Area = 1/2 * base * height
2.
FLASHCARD QUESTION
Front
How do you solve for x in the equation 2x + 3 = 11?
Back
Subtract 3 from both sides: 2x = 8. Then divide by 2: x = 4.
3.
FLASHCARD QUESTION
Front
What is the Pythagorean theorem?
Back
In a right triangle, a² + b² = c², where c is the hypotenuse.
4.
FLASHCARD QUESTION
Front
What is the slope-intercept form of a linear equation?
Back
y = mx + b, where m is the slope and b is the y-intercept.
5.
FLASHCARD QUESTION
Front
How do you find the mean of a set of numbers?
Back
Add all the numbers together and divide by the count of numbers.
6.
FLASHCARD QUESTION
Front
What is the difference between a rational and an irrational number?
Back
Rational numbers can be expressed as a fraction, while irrational numbers cannot.
7.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
Circumference = 2 * π * radius.
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