What is the relationship between the height of an object and the length of its shadow?
7th Grade Math STAAR Prep

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Mathematics
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7th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The height of an object and the length of its shadow are proportional. If two objects cast shadows, the ratio of their heights is equal to the ratio of their shadow lengths.
2.
FLASHCARD QUESTION
Front
How do you find the height of an object using similar triangles?
Back
To find the height of an object using similar triangles, set up a proportion using the heights and shadow lengths of the objects. For example, if a building's height and shadow length are known, and the shadow length of a person is known, you can find the person's height.
3.
FLASHCARD QUESTION
Front
What is the sum of the angles in a triangle?
Back
The sum of the angles in a triangle is always 180 degrees.
4.
FLASHCARD QUESTION
Front
How do you solve for an unknown angle in a triangle?
Back
To solve for an unknown angle in a triangle, subtract the sum of the known angles from 180 degrees.
5.
FLASHCARD QUESTION
Front
What is probability?
Back
Probability is a measure of the likelihood that an event will occur, expressed as a ratio of the number of favorable outcomes to the total number of possible outcomes.
6.
FLASHCARD QUESTION
Front
How do you calculate the probability of two independent events occurring in sequence?
Back
To calculate the probability of two independent events occurring in sequence, multiply the probability of the first event by the probability of the second event.
7.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
The formula for the circumference of a circle is C = 2πr, where r is the radius.
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