Area and Volume Flashcards
What is the definition of Area?
Total number of square units inside a a two-dimensional figure
What is the formula for the area of a rectangle?
Area= Base x Height
or
Area= Length x Width
The area is measured in _______
Square Units
The area of a parallelogram is
Area= Base x Height
The area of a Triangle is
A=1/2 (base x height)
Why is the formula A=1/2(B)(H) used to find the Area of a Triangle?
A parallelogram can be divided into two equal triangles. So the area of one triangle is half the area of the entire parallelogram.
A solid figure has
Three dimensions and occupies space
How do you form a solid figure?
Take a flat shape and add height to make it three dimensional
What does Lateral Area of a figure mean?
Area of that Figure sides only.
What does Surface Area of a figure mean?
The area of the sides as well as the area of the bases.
What is the Lateral Area Formula for a 3D object and a cylinder?
Lateral Area= Perimeter x height
Lateral Area of Cylinder = 3.14 x Diameter (Circumference) x Height
What is the formula for Surface area of an 3D object?
Surface Area= Lateral Area + 2B (B = area of the base)
The special formula to find the surface area of a sphere is?
Surface Area of Sphere= 4(3.14)r^2
The Volume of a solid figure is
The amount of space that figure occupies.
Volume is measure in
Cubic Units=Unit^3
