Answers

2015-11-03T13:23:54+08:00
Some examples of plane figures are triangles,rectangles,squares,circles,heart,pentagons,and hexagons.A plane figure is flat figure with closed lines that stays in a single plane. The lines of the figure can be straight, curved or a combination 
0
  • Brainly User
2015-11-04T11:14:27+08:00
Problems involving plane figures:

1)  Area of a triangle
     Solution:  A= (bh)/2

2)  Area of square 
     Solution: Area = (sides)²

3)  Perimeter of rectangle
     Solution:  P (of rectangle) = 2(length) + 2 (width or breadth)
0