Area of Figures Flashcards
(17 cards)
Area of a Parallelogram
Area=(base)(height)
A=bh
Area of a Triangle
Area=half the product of a base and the corresponding height
A=1/2(bh)
Area of a trapezoid
Area is half the product of the height and the sum of the bases
A=1/2(b1+b2)
Area of a rhombus
Area is half the product of the lengths of its diagonals
A=1/2(d1+d2)
Area of a Kite
Area is half the product of the lengths of its diagonals
A=1/2(d1+d2)
Area of a Regular Polygon
Area is half the product of the apothem and the perimeter
A=1/2(ap)
Area of a Circle
Area is the product of pi and the square of a radius
A=(pi)(r^2)
Area of a sector of a circle
Product of the ratio measure of the arc/360 and the area of the circle
Measure of Arc/360(pi x r^2)
Lateral Area of a Prism
LA = (perimeter of the BASE) x (height of the prism) LA = ph
Surface Are of a Prism
The sum of the lateral area and the areas of the two bases
SA = LA + 2B
Lateral Area of a Cylinder
Product of the circumference of the base and the height of the cylinder
LA = 2(pi)rh
LA = (pi)dh
Surface Area of a right cylinder
SA = LA +2B SA = 2(pi)rh + 2(pi)r^2
Lateral Area of a Pyramid
LA = 1/2 (perimeter of the base)(slant height of the pyramid) LA = 1/2 pl
Surface Area of a Pyramid
SA = LA + (area of the base) SA = LA + B
Lateral Are of a Cone
LA = (pi)rl LA = pi x radius x slant height
Surface Area of a Cone
SA = Lateral Area + Area of the Base SA = LA + B
Area of a Rectangle
Area=(base)(height)
A=bh
