Which formulas can be used to find the surface area of a right prism where p is the perimeter of the base, h is the height of the prism, BA is the area of bases, & LA is the lateral area?
there may be more than one right answer.
A. SA = BA + 1/2 ph
B. SA [...]
PLEASE HELP! Very important help much appreciated
Hi,
Lateral Area of any prism = perimeter of base x height of prism
Lateral Area of any regular pyramid = ½ x perimeter of base x slant height of pyramid
(Remember: apothem² + height² = slant height²)
Lateral Area of any cone = πrs, where r = radius of base and [...]
I need to get a better approach towards getting the answer to these types of questions:
~Find the height of a pyramid whose base is a regular nonagon with side length 8 inches and lateral faces are isosceles triangles with legs 30.
~ how do you get the answer to this question..step by step?
volume:
triangle-base x height divide [...]
Volume and area formulas?! help?!?
SURFACE AREA
rectangular prism_______________________
triangular prism______________________
cylinder___________________________
square pyramid____________________
cone______________________________
sphere____________________________
VOLUME
rectangular prism____________________
triangular prism_____________________
cylinder_____________________________
square pyramid______________________
cone________________________________
sphere___________________________
formulas 2-d object
area of a square_____________
rectangle______________
parallelogram_____________________
trapezoid____________________
rhombus_______________________
triangle_________________________
circle___________________________
circumference of a circle
THANKS SO MUCH! I REALLY REALLY APPRECIATE!
2-D
Square= Length x Width
Rectangle= Length x Width
Parallelogram= Base x Height
Trapezoid= Base x Height
Rhombus= Base x Height
Triangle= Base x Height /2
Circle= Pi R^2
Circumference= Pi x diameter Or… 2 x Pi x [...]
http://img410.imageshack.us/img410/5233/mathsl.jpg
I just sketched 3 shapes quickly. Im very unsure what formula to use on A and C.
Thanks
A & B:- This figure is formed by 2 right angled triangles and 3 paralellograms
C :- Formed by 4 paralellograms and 2 trapeziums
Formulas:
Area of paralellogram = base * height
Area of triangle = (1/2) * base * height
Ares of trapezium [...]
I need help with these formulas:
What is the formula to finding the area of a circle if all you have to work with is the diameter.
What is the formula to finding the cirfumference of a circle is you only have the radis or diameter?
Please help me, I am confused!!!
2 times radius = diameter [...]
The area of a regular pentagon is equal to 1.720a (where a= the length of a side), so multiply that by length for volume of a regular prism, or for area, multiply it by 2 and add (5 times [a * L]), where L is the length.
In the case of an irregular pentagonal prism, divide [...]
I have a perimeter and area test on Wednesday and I need to memorize the formulas for these shapes:
Rectangle:
Perimeter: (Base + Height) x 2
Area: Base x Height
Square:
Perimeter: side x 4
Area: side x side
Triangle:
Perimeter: Add 3 sides
Area: 1/2 x base x height
Parallelogram:
Perimeter: (Base + Slant Height) x 2
Area: Base x Height
Circle:
Perimeter: pi x diameter
Area: pi x [...]
I’m to lazy to find them myself, Bwahahaha!
What’s base?
V = Area of base * Height
= π r² h
SA = 2 π r h + 2 π r²
Area of the base, if your talking about a circular cylinder is a circle (area = π r², where r = radius of circle) if you’re looking at a [...]
Given the radius (r) and the amount of sides (s) a polygon has would area = (s*r^2*sin(360/s))/2 and would the perimeter = 2*r*s*sin(360/s)?
Your question needs more information before we can do anything. First, radius doesn’t really apply to polygons. You may be referring to a regular polygon inscribed in a circle or a [...]
