其他

In the figure, $ABCD$ is a rectangle. It is given that $E$ is the foot of the perpendicular from $D$ to $AC$. If the area of $\triangle ADE$ is $1\text{ cm}^2$, then the area of $\triangle ABC$ is

In the figure, $D$ is a point lying on $AC$ such that $BD$ is perpendicular to $AC$. Find $AD:DC$.

In the figure, $AB\parallel CD$, $AB=150\text{ cm}$ and $CD=80\text{ cm}$. Find $BD$ correct to the nearest cm.

In the figure, $ABCD$ is a rectangle. If $BED$ is a straight line, then the area of $\triangle ABE$ is

The figure shows part of a page torn off from a mathematics book. According to the information shown, which of the following is a root of the equation $\mathrm{f}(x)=0$ ?

In the figure, find the area of $\triangle ABC$.

In the figure, the area of $\triangle ABC$ is

In the figure, find the area of $\triangle ABC$.

Referring to the figure, find the length of the line segment joining $P$ and $Q$.

In the figure, $PQRS$ is a rectangle with $PQ=24$ and $PS=d$. $T$ is the mid-point of $PQ$. $V$ is a point on $SR$ and $\dfrac{\text{area of }PTVS}{\text{area of }TQRV}=2$. $SV=$