Area rule

The area of △KLM is $60{,}6m^{2}$, with $KL=16{,}5m$ and $KM=12{,}8m$. Calculate the possible sizes of K̂, correct to one decimal place.

In △RST, $RS=18{,}5$ cm, $RT=9{,}4$ cm and $\hat{R}=43^\circ$. Calculate the area of △RST, correct to two decimal places.

In △KLM, $KL=20$ cm, $KM=11{,}1$ cm and $\hat{K}=39^\circ$. Calculate the area of △KLM, correct to two decimal places.

In △ABC, $AB=18{,}3m$, $AC=14{,}5m$ and $\hat{A}=48^\circ$. Calculate the area of △ABC, correct to two decimal places.

In △PQR, $PQ=9{,}7m$, $PR=12m$ and $\hat{P}=36^\circ$. Calculate the area of △PQR, correct to two decimal places.

The area of △ABC is 115,2 cm$^{2}$, with $AB=20$ cm and $AC=15{,}5$ cm. Calculate the possible sizes of Â, correct to one decimal place.

The area of △DEF is $127{,}5m^{2}$, with $DE=20{,}7m$ and $DF=12{,}7m$. Calculate the possible sizes of D̂, correct to one decimal place.

The area of △XYZ is 139,2 cm$^{2}$, with $XY=16{,}3$ cm and $XZ=18{,}7$ cm. Calculate the possible sizes of X̂, correct to one decimal place.

The area of △DEF is $45{,}5m^{2}$, with $DE=8{,}1m$ and $DF=12{,}5m$. Calculate the possible sizes of D̂, correct to one decimal place.

In △XYZ, $XY=20{,}8$ cm, $XZ=10{,}8$ cm and $\hat{X}=39^\circ$. Calculate the area of △XYZ, correct to two decimal places.

In △DEF, $DE=9{,}5m$, $DF=21{,}1m$ and $\hat{D}=63^\circ$. Calculate the area of △DEF, correct to two decimal places.

In △ABC, $AB=18{,}9m$, $AC=11{,}4m$ and $\hat{A}=62^\circ$. Calculate the area of △ABC, correct to two decimal places.