Tamil Nadu Board Solutions for Chapter: Geometry, Exercise 4: Exercise 5.1

In any triangle _____ sides are opposite to equal angles.

In the given figure, $\mathrm{D}$ is the midpoint of $\mathrm{OE}$ and $\angle \mathrm{CDE}=90°.$ Prove that $△\mathrm{ODC}\cong △\mathrm{EDC}$.

Is $△\mathrm{PRQ}\cong △\mathrm{QSP}$ ? Why?

Two similar triangles will always have _____ angles.

If in triangles $\mathrm{PQR}$ and $\mathrm{XYZ},\frac{\mathrm{PQ}}{\mathrm{XY}}=\frac{\mathrm{QR}}{\mathrm{ZX}}$ then they will be similar if

A flag pole $15 \mathrm{m}$ high casts a shadow of $3 \mathrm{m}$ at $10 \mathrm{a}.\mathrm{m}$. The shadow cast by a building at the same time is $18.6 \mathrm{m}$. The height of the building is

If$△\mathrm{ABC}~△\mathrm{PQR}$ in which $\angle A=53°$ and $\angle \mathrm{Q}=77°$, then $\angle \mathrm{R}$ is.

In the given figure, which of the following statements is true?