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Questions and Answers
What is the formula for the perimeter of a square?
What is the formula for the perimeter of a square?
- P = 2 × L + 2 × W
- C = 2 ¶ R
- A = S²
- P = 4 × S (correct)
What is the formula for the area of a square?
What is the formula for the area of a square?
A = S²
What is the formula for the perimeter of a rectangle?
What is the formula for the perimeter of a rectangle?
P = 2 × L + 2 × W
What is the formula for the area of a rectangle?
What is the formula for the area of a rectangle?
What is the formula for the circumference of a circle when you know the radius?
What is the formula for the circumference of a circle when you know the radius?
What is the formula for the circumference of a circle when you know the diameter?
What is the formula for the circumference of a circle when you know the diameter?
What is the formula to find the radius of a circle?
What is the formula to find the radius of a circle?
What is the formula to find the diameter of a circle?
What is the formula to find the diameter of a circle?
What is the formula for the area of a circle?
What is the formula for the area of a circle?
What is the formula for the area of a parallelogram?
What is the formula for the area of a parallelogram?
What is the formula for the area of a triangle?
What is the formula for the area of a triangle?
What is another formula for the area of a triangle?
What is another formula for the area of a triangle?
What is the formula for the volume of a rectangular prism?
What is the formula for the volume of a rectangular prism?
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Study Notes
Geometric Formulas
- Perimeter of a Square: Calculated using the formula P = 4 × S, where S is the length of one side.
- Area of a Square: Determined by A = S², with S representing the length of a side.
Rectangles and Circles
- Perimeter of a Rectangle: Use the formula P = 2 × L + 2 × W, where L is the length and W is the width.
- Area of a Rectangle: Found using A = L × W, multiplying length by width.
Circle Measurements
- Circumference of a Circle with Radius: To calculate, apply C = 2Ï€R, where R is the radius.
- Circumference of a Circle with Diameter: Given by the formula C = π × D, with D being the diameter.
Circle Dimensions
- Radius: The radius is half the diameter, expressed as R = D ÷ 2.
- Diameter: The full length across the circle, calculated by D = 2 × R.
Circle Area
- Area of a Circle: A = π × R², where R is the radius.
Other Geometric Areas
- Area of a Parallelogram: A = B × H, where B is the length of the base and H is the height.
- Area of a Triangle: Two equivalent formulae exist: A = B × H ÷ 2 and A = ½ × B × H, where B is the base and H is the height.
Volume Calculation
- Volume of a Rectangular Prism: Determined by V = L × W × H, where L is length, W is width, and H is height.
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