Advertisements
Advertisements
प्रश्न
Find the unknown marked angles in the given figure:
Advertisements
उत्तर
In the figure,
∠A + ∠B + ∠C = 180° .....(Sum of angles of a triangle)
k°+ k°+ k°= 180°
⇒ 3k° = 180°
⇒ k° =`(180°)/3=60°`
Hence ∠A = k° = 60°, ∠B = k° = 60°
and ∠C = k° = 60°
APPEARS IN
संबंधित प्रश्न
The exterior angles, obtained on producing the base of a triangle both way are 104° and 136°. Find all the angles of the triangle.
Is the following statement true and false :
An exterior angle of a triangle is equal to the sum of the two interior opposite angles.
Mark the correct alternative in each of the following:
If all the three angles of a triangle are equal, then each one of them is equal to
An exterior angle of a triangle is 108° and its interior opposite angles are in the ratio 4 : 5. The angles of the triangle are
State, if the triangle is possible with the following angles :
40°, 130°, and 20°
In the given figure, express a in terms of b.
Can 30°, 60° and 90° be the angles of a triangle?
If an angle of a triangle is equal to the sum of the other two angles, find the type of the triangle
The image of an object placed at a point A before a plane mirror LM is seen at the point B by an observer at D as shown in the following figure. Prove that the image is as far behind the mirror as the object is in front of the mirror.
[Hint: CN is normal to the mirror. Also, angle of incidence = angle of reflection].
The number of triangles in the following figure is ______. Their names are ______.
