Advertisements
Advertisements
Question
Fill in the blank to make the following statement true:
An exterior angle of a triangle is equal to the two ....... opposite angles.
Advertisements
Solution
An exterior angle of a triangle is equal to the two interior opposite angles.
APPEARS IN
RELATED QUESTIONS
Can a triangle have All angles more than 60°? Justify your answer in case.
In the given figure, AB || DE. Find ∠ACD.
In the given figure, side BC of ΔABC is produced to point D such that bisectors of ∠ABC and ∠ACD meet at a point E. If ∠BAC = 68°, find ∠BEC.
In a triangle PQR, ∠P = 60° and ∠Q = ∠R, find ∠R.
Find x, if the angles of a triangle is:
x°, 2x°, 2x°
Classify the following triangle according to angle:
The exterior angle of a triangle is equal to the sum of two
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].
In the following figure, AB = BC and AD = BD = DC. The number of isosceles triangles in the figure is ______.
Can we have two acute angles whose sum is a straight angle? Why or why not?
