S K Khanuja Solutions for Chapter: Triangles, Exercise 4: Exercise

The measure of two angles of a triangle are $75°$ and $65°.$ Find the measure of third angle.

If the angles of a triangle are in the ratio $2: 3: 4,$ find the largest angle.

If one of the base angles of an isosceles triangle is $70°$, find the vertical angle.

One of the acute angles of a right triangle is $50°.$ Find the other acute angle.

One of the angles of a triangle is $110°$ and the other two angles are equal. What is the measure of each of these equal angles?

With the given angle measurements, can a triangle be constructed?

$30°,60°,70°$

With the given angle measurements, can a triangle be constructed?

$50°$, $70°$, $60°$

With the given angle measurements, can a triangle be constructed?

$72°$, $28°$, $90°$