MathReference -
Problems
MR-679 / 1. problem
Calculate the area of a rectangle with a perimeter of 14 dm and a diagonal of 5 dm.
All Problems
Source:
Vene T. Bogoslavov: Collection of Solved Problems #3 - 1..)
Geometry → Two-dimensional geometric shapes → Quadrilaterals
Help
Required theoretical knowledge
Diagonal
d
=
a
2
+
b
2
Perimeter
P
=
2
(
a
+
b
)
Area
A
=
a
·
b
Solution of the problem
A
=
12
d
m
2
PLEASW HELP ME!
