Review (STAAR) 2

Front

What is the Pythagorean Theorem?

Back

The Pythagorean Theorem states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b). It can be expressed as: a² + b² = c².

Front

What is the formula for the area of a square?

Back

The area (A) of a square is calculated using the formula: A = side², where 'side' is the length of one side of the square.

Front

How do you solve for n in the equation: -(8n - 2) = 3 + 10(1 - 3n)?

Back

To solve for n, first distribute the -1: -8n + 2 = 3 + 10 - 30n. Then combine like terms and isolate n to find n = 1/2.

Front

What is the sum of the angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is the relationship between complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What is the formula for the area of a rectangle?

Back

The area (A) of a rectangle is calculated using the formula: A = length × width.

Front

What is the definition of a variable in algebra?

Back

A variable is a symbol, often a letter, that represents one or more numbers in an algebraic expression or equation.

Front

What is the formula for the circumference of a circle?

Back

The circumference (C) of a circle is calculated using the formula: C = 2πr, where 'r' is the radius of the circle.

Front

What is the definition of an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.