Chap 7 - area, perimeter, volume Flashcards
1
Q
properties of prism
A
-3D
-all sections are equal (cross- sections)
2
Q
Perimeter of square
A
4b
3
Q
Perimeter of react.
A
2( L + b )
4
Q
Perimeter of circle (circumference)
A
πd
5
Q
Perimeter of circle arc (circumference)
A
angle/ 360 x πd
6
Q
Area of square
A
b^2
7
Q
Area of react
A
Lb
8
Q
Area of triangle
A
1/2 x bh
9
Q
Area of trap.
A
h( a+b )/ 2
a & b are parrel sides
10
Q
Area of circle
A
πr^2
11
Q
Area of rhombus
A
Lb
12
Q
Area of parallelogram
A
Lb
13
Q
Area of circle sector
A
angle/ 360 x πr^2
14
Q
Area of curved surface area of cone
A
πrL
L = length from bottom to tip
15
Q
Area of surface of Sphere
A
4πr^2
16
Q
Volume of cube
A
b^3
17
Q
Volume of cuboid
A
Lbh
18
Q
Volume of cylinder
A
πr^2 h
19
Q
Volume of prism
A
1/2 x bh x h
(cross-section x h)
20
Q
volume of pyramid
A
1/3 x base area x perpendicular height
21
Q
Volume of cone
A
1/3 x πr^2 h
22
Q
Volume of Sphere
A
4/3 x πr^3
