Rectangular Properties
These are the properties of the rectangle, among which are:
- The opposite sides are parallel and the same length.
- The four right angles ∠a = ∠b = ∠c = ∠d.
- The two diagonals are the same length AC = BD (diagonal).
- It has two axes of symmetry.
Formula of Rectangle Area
A = l x w
Information:
A = Area
l = long
w = width
Example Question of Rectangle Area
What is the area of a rectangle that has a length of 3cm and a width of 2cm?Answer:
l = 3cm
w = 2cm
A = p x l
A = 3cm x 2cm
A = 6cm2
So the area of a rectangle that has a length of 3cm and a width of 2cm is 6cm2
Formula of Circumference Rectangle
C = 2(P + l)
Information:
C = Circumference
l = Length
w = Width
Example Question of Circumference Rectangle
What is the circumference of a rectangle that has a length of 3cm and an area of 2cm?Answer:
l = 3cm
W = 2cm
C = 2(P + l)
C = 2(3cm + 2cm)
C = 2(5cm)
C = 10cm
So the circumference of a square that has a length of 3cm and a width of 2cm is 10cm.
Similarly this article.
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Referensi :
- To'Ali's book math group accounting and sales
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