Equations

Ontario 10 Applied (MFM2P)

Formulas, substitution and equations I

The area of a rhombus is given by the formula $A=\frac{1}{2}xy$`A`=12`x``y`, where $x$`x` and $y$`y` are the lengths of the diagonals.

If the diagonals of a rhombus have lengths of $2$2 cm and $4$4 cm, find the area of the rhombus.

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Determine the value of a variable in the first degree, using a formula