
Midterm Review 2
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the formula for the perimeter of a parallelogram?
Back
The perimeter (P) of a parallelogram is given by the formula: P = 2(a + b), where 'a' and 'b' are the lengths of the two distinct sides.
2.
FLASHCARD QUESTION
Front
What is a transformation that preserves side lengths?
Back
Transformations that preserve side lengths include reflections, rotations, and translations.
3.
FLASHCARD QUESTION
Front
What type of triangle has two equal sides?
Back
An isosceles triangle has two equal sides.
4.
FLASHCARD QUESTION
Front
What is the definition of a right triangle?
Back
A right triangle is a triangle that has one angle measuring 90 degrees.
5.
FLASHCARD QUESTION
Front
What is the effect of a reflection over the x-axis on a point (x, y)?
Back
The reflection of a point (x, y) over the x-axis results in the point (x, -y).
6.
FLASHCARD QUESTION
Front
What is the weighted average formula?
Back
The weighted average is calculated as: \( \text{Weighted Average} = \frac{(x_1 \cdot w_1) + (x_2 \cdot w_2)}{w_1 + w_2} \), where x is the value and w is the weight.
7.
FLASHCARD QUESTION
Front
What is the distance formula between two points (x1, y1) and (x2, y2)?
Back
The distance (d) between two points is given by: \( d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \).
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