Advertisements
Advertisements
प्रश्न
In the following, find the marked unknown angle:
Advertisements
उत्तर
Since, sum of all angles of triangle = 180°
Hence, 60° + 45° + 20° + x = 180°
⇒ 125° + x = 180°
⇒ x = 180° – 125°
⇒ x = 55°
APPEARS IN
संबंधित प्रश्न
If the angles of a triangle are in the ratio 1: 2 : 3, determine three angles.
The angles of a triangle are (x − 40)°, (x − 20)° and `(1/2x-10)^@.` find the value of x
Can a triangle have two right angles? Justify your answer in case.
Is the following statement true and false :
A triangle can have two obtuse angles.
If the angles of a triangle are equal, find its angles.
One angle of a triangle is 60°. The other two angles are in the ratio of 5: 7. Find the two angles.
If an angle of a triangle is equal to the sum of the other two angles, find the type of the triangle
In the following figure, points lying in the interior of the triangle PQR are ______, that in the exterior are ______ and that on the triangle itself are ______.
The number of triangles in the following figure is ______. Their names are ______.
What is common in the following figure?
 |
 |
| (i) | (ii) |
Is figure (i) that of triangle? if not, why?
