Ok so i was just wondering the formulas for these:
Triangles
Rectangles
Parallelograms
Quadralaterals
Thanks so much <3
+808 Do you want:
Area ?
Perimeter ?
Sum of internal angles ?
...
Area of ...
... triangle: bh/2 (base * height/2)
... rectangle: lw (length * width)
... parallelogram: bh
... any quadrilateral: (pq sin t)/2 (p and q are the length of the diogonals, t is the angle between them)
+808 Do you want:
Area ?
Perimeter ?
Sum of internal angles ?
...
Area of ...
... triangle: bh/2 (base * height/2)
... rectangle: lw (length * width)
... parallelogram: bh
... any quadrilateral: (pq sin t)/2 (p and q are the length of the diogonals, t is the angle between them)
+129852 Here are two sites that I like....
http://www.coolmath.com/reference/geometry-trigonometry-reference.html
http://www.mathwarehouse.com/geometry/
