Advertisements
Advertisements
प्रश्न
Can a triangle have two obtuse angles? Justify your answer in case.
Advertisements
उत्तर
No,
A triangle can’t have 2 obtuse angles. Obtuse angle means more than `90^@` So that the
sum of the two sides will exceed `180^@`which is not possible. As the sum of all three
angles of a triangle is `180^@` .
APPEARS IN
संबंधित प्रश्न
Compute the value of x in the following figure:
In ΔPQR, If ∠R > ∠Q then ______.
Calculate the unknown marked angles of the following figure :
Calculate the angles of a triangle if they are in the ratio 4: 5: 6.
Find x, if the angles of a triangle is:
x°, 2x°, 2x°
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.
In the following figure, ∠BAC = 90° and AD ⊥ BC. The number of right triangles in the figure is ______.
Can we have two acute angles whose sum is a right angle? Why or why not?
What is the sum of the measures of the interior angles of any triangle, △ABC?
