What is the measure of angle b if it is complementary to angle a, which measures 54°?
8th GRADE MATH REVIEW

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Mathematics
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8th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
Angle b = 36° (because complementary angles sum to 90°).
2.
FLASHCARD QUESTION
Front
If angle 1 is 135 degrees, what is the relationship between angle 1 and angle 3 if they are vertical angles?
Back
Angle 3 = 135 degrees (vertical angles are equal).
3.
FLASHCARD QUESTION
Front
What are the side lengths of a right triangle if one side is 3 cm, another is 4 cm, and the hypotenuse is 5 cm?
Back
The side lengths are 3 cm, 4 cm, and 5 cm (satisfies Pythagorean theorem).
4.
FLASHCARD QUESTION
Front
What is the slope of a line that rises 3 units for every 2 units it runs?
Back
Slope = 3/2 or 1.5.
5.
FLASHCARD QUESTION
Front
Reflect the point (3, -4) over the x-axis. What is the new point?
Back
(3, 4).
6.
FLASHCARD QUESTION
Front
What is the area of a triangle with a base of 10 cm and a height of 5 cm?
Back
Area = 25 cm² (Area = 1/2 * base * height).
7.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
Circumference = 2πr, where r is the radius.
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