25
25 units
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rhombus a rectangle and a square
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In parallelogram ABCD, AC=BD. Is ABCD a rectangle?
25 units
bc equals st multiplied by the scale factor.
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rhombus
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rectangle
rhombus
rhombus
If parallelogram RSTV has sides RV and TV that are equal in length, then RSTV must also be a rectangle. In a parallelogram, if one pair of opposite sides is equal, then the angles are right angles, which is a characteristic of rectangles. Thus, RSTV would be a specific type of parallelogram known as a rectangle.
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rhombus a rectangle and a square
Assuming ABCD marks the four corners, the perimeter = sum of the four sides = (AB + BC + CD + DA) where AB == the side from A to B etc.