Properties of Triangle

In the figure, $\mathrm{seg} \mathrm{BD}\cong \mathrm{seg} \mathrm{AD}$, $\mathrm{seg} \mathrm{EC}\cong \mathrm{seg} \mathrm{EB}$, $m\angle BED=60°$, $\angle BDA$ is a right angle, then find $m\angle ABC$.

The angles in a triangle is $30-60-90$ degree. Find the other sides of a triangle whose hypotenuse is $22 \mathrm{cm}$.

The angles of a triangle are $45-45-90$ degrees. Use the triangle's sides formula to find the other sides of a triangle whose one side is $5 \mathrm{cm}$

The angles of a triangle are $45-45-90$ degrees. Use the triangle's sides formula to find the other sides of a triangle whose hypotenuse is $4\sqrt{2} \mathrm{cm}$

The ratio of sides of a triangle with angles $45-45-90$ degree is 

The angles of a triangle are $45-45-90$ degrees. Use the triangle's sides formula to find the other sides of a triangle whose one side is $2 \mathrm{cm}$

Apply $45-45-90$ degree triangle sides formula to find the other sides of a triangle whose one side is $8\sqrt{2} \mathrm{cm}$

The angles in a triangle is $30°-60°-90°$.The hypotenuse of the triangle is $20 \mathrm{cm}$. The other sides of a triangle is $20 \mathrm{cm}$ are $11 \mathrm{cm}$ and $9 \mathrm{cm}$

The ratio of sides of a triangle with angles $30-60-90$ degree is 

The other sides of a triangle whose hypotenuse is $14 \mathrm{cm}$ are $6 \mathrm{cm}$ and $8 \mathrm{cm}$(Apply $30-60-90$ degree triangle sides formula)

Apply $30-60-90$ degree triangle sides formula to find the other sides of a triangle whose hypotenuse is $16 \mathrm{cm}$

An exterior angle of a triangle is of measure $80°$ and one of its interior opposite angles is of measure $30°$. Find the measure of the other interior opposite angle. 

An exterior angle of a triangle is of measure $70°$ and one of its interior opposite angles is of measure $25°$. Find the measure of the other interior opposite angle. 

Find the value of $x°, y°$ and $z°$

In the triangle ABC, sides BC, CA, and AB are extended to point D, E, and F so that $\angle$BAE, $\angle$ACD, $\angle$CBF are exterior angles.
What is the sum of the exterior angles?

Find the sum of the exterior angles in degrees.

In the triangle below, $x=$ _____$°$.

What is the value of $x$ in the below triangle?

The value of $x=$ _____degrees.

If the angles of $△$ are in the ratios $1 : 2 : 3$, then it is _____ angled triangle.

In $△ABC$, $\angle BAC={90}^{°}$ and$AD\perp$$BC$. If $\angle BAD=40°$, then what is the numerical value of $\angle ACD$?

In an isosceles triangle $\mathrm{A}\mathrm{B}\mathrm{C},$ with $\mathrm{A}\mathrm{B}=\mathrm{A}\mathrm{C},$ the bisectors of $\mathrm{\angle }\mathrm{B}$ and $\mathrm{\angle }\mathrm{C}$ intersect each other at $\mathrm{O}.$ Join $\mathrm{A}$ to $\mathrm{O}.$ Is $\mathrm{O}\mathrm{B}=\mathrm{O}\mathrm{C}$ (Yes/No).