Advertisements
Advertisements
प्रश्न
Is the following statement true and false :
An exterior angle of a triangle is equal to the sum of the two interior opposite angles.
पर्याय
Ture
False
Advertisements
उत्तर
An exterior angle of a triangle is equal to the sum of the two interior opposite angles.
According to exterior angle theorem,
ext.x ∠CAB +∠CBA
APPEARS IN
संबंधित प्रश्न
AB is a line segment. P and Q are points on opposite sides of AB such that each of them is equidistant from the points A and B (See Fig. 10.26). Show that the line PQ is perpendicular bisector of AB.
The exterior angles, obtained on producing the base of a triangle both way are 104° and 136°. Find all the angles of the triangle.
Compute the value of x in the following figure:
In ΔPQR, If ∠R > ∠Q then ______.
Find the unknown marked angles in the given figure:
As shown in the figure, Avinash is standing near his house. He can choose from two roads to go to school. Which way is shorter? Explain why.
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].
Prove that in a triangle, other than an equilateral triangle, angle opposite the longest side is greater than `2/3` of a right angle.
How many sides does a triangle have?
The sides of a triangle must always be connected so that:
