rectangle
A traingle covers half the area of a rectangle with the same base and [perpendicular] height.
Any plane shape can have the same area as any other plane shape if the dimensions are carefully selected
Would be congruent.It doesn't have to be a rectangle, though.It could be any shape.
A rectangle and a parallelogram have the same formula for area:The area of a parallelogram is given:area = length × widthwhere:length is the length of one of the sides of the parallelogram; andwidth is the perpendicular distance between the side chosen for the length and its parallel side.In the formula for the area of a rectangle, the width (perpendicular distance between the sides given for the length) is also the length of the other two sides.
rectangle
Area rectangle = length x width (using same units).
A traingle covers half the area of a rectangle with the same base and [perpendicular] height.
it is the formula for both a rectangle and a square. remember a square is a rectangle, but a rectangle is not a square (what i mean is a square has to have all 90 degree angles and four sides that are all the same length a rectangle doesn't have all the same lengths. but a rectangle is a shape with all 90 degree angles, and a square fits that discription)
Any plane shape can have the same area as any other plane shape if the dimensions are carefully selected
depends on the shape, if its a square the formula is LW, a rectangle is the same. For a triangle the formula is Lx1/2W. for a trapezium split it into triangles and rectangles and work out the areas before adding them together. for a circle i think its pixrsquared
Would be congruent.It doesn't have to be a rectangle, though.It could be any shape.
Multiply the width (w) by the height (h). Or (w) x (h) = a (area). The same goes for any shape, except rounded figures, i think
A rectangle and a parallelogram have the same formula for area:The area of a parallelogram is given:area = length × widthwhere:length is the length of one of the sides of the parallelogram; andwidth is the perpendicular distance between the side chosen for the length and its parallel side.In the formula for the area of a rectangle, the width (perpendicular distance between the sides given for the length) is also the length of the other two sides.
of course base times height for a square or rectangle. but for a trapezoid a= h x "b1+b2"
because they are the same shape
The cross-section of a prism is the same - it is the same as the shape of the two parallel "bases"; this cross-section can be any shape, not necessarily a rectangle. Each side of a prism is rectangular, so knowing the formula for a rectangle will help you along to finding the surface area of the prism by helping you to calculate the area of the sides; however, you will still need to be able to calculate the area of the bases (unless it is given to you), for which knowing the area of a rectangle may not (usually will not) help.