The acute angles of a right angle triangle are in the ratio $2:3$. Find the angles of the triangle.

In the figure, $△PQR$ is right-angled at $Q$, $\overline{ML}\parallel \overline{RQ}$ and $\angle LMR=130°$. Find $\angle LPM, \angle PML$ and $\angle PRQ$.

In the figure $ABCDE$, $\angle 1+\angle 2+\angle 3+\angle 4+\angle 5$.

Draw $△\mathrm{ABC}$ and form an exterior $\angle \mathrm{ACD}$. Now take a protractor and measure $\angle \mathrm{ACD}, \angle \mathrm{A} \text{and} \angle \mathrm{B}$.

Find the sum of $\angle \mathrm{A}+\angle \mathrm{B}$ and compare it with the measure $\angle \mathrm{ACD}$

Do you observe that $\angle \mathrm{ACD}$ is equal or nearly equal to $\angle \mathrm{A}+\angle \mathrm{B}$.

In $△ABC$, name all the interior and exterior angles of the triangle.

For $△ABC$, find the measure of $\angle ACD$.

Find the measure of angles $x$ and $y$.

In the following figure, find the values of $x$.

In the following figure, find the values of $x$ and $y$.