Advertisements
Advertisements
प्रश्न
Calculate the unknown marked angles of the following figure :
Advertisements
उत्तर
We know that the sum of three angles of a triangle is 180°, therefore
In figure,
90° + 30° + x = 180°
⇒ 120° + x = 180°
⇒ x = 180° − 120° = 60°
Hence x = 60°
APPEARS IN
संबंधित प्रश्न
The angles of a triangle are (x − 40)°, (x − 20)° and `(1/2x-10)^@.` find the value of x
Can a triangle have two obtuse angles? Justify your answer in case.
In the given figure, AB || DE. Find ∠ACD.
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
Calculate the unknown marked angles of the following figure :
One angle of a right-angled triangle is 70°. Find the other acute angle.
Classify the following triangle according to sides:
Classify the following triangle according to angle:
The length of the sides of the triangle is given. Say what types of triangles they are 3.7 cm, 3.4 cm, 4 cm.
The length of the three segments is given for constructing a triangle. Say whether a triangle with these sides can be drawn. Give the reason for your answer.
9 cm, 6 cm, 16 cm
