Advertisements
Advertisements
प्रश्न
The angles of the triangle are 3x – 40, x + 20 and 2x – 10 then the value of x is
पर्याय
40°
35°
50°
45°
उत्तर
35°
Explanation;
Hint:
3x – 40 + x + 20 + 2x – 10 = 180° ...(Sum of the angles of a triangle is 180°)
6x – 30 = 180°
6x = 180° + 30°
x = `(210^circ)/(6^circ)`
= 35°
APPEARS IN
संबंधित प्रश्न
If each angle of a triangle is less than the sum of the other two, show that the triangle is acute angled.
Determine the measure of each of the equal angles of a right-angled isosceles triangle.
OR
ABC is a right-angled triangle in which ∠A = 90° and AB = AC. Find ∠B and ∠C.
The exterior angles, obtained on producing the base of a triangle both way are 104° and 136°. Find all the angles of the triangle.
Is the following statement true and false :
All the angles of a triangle can be equal to 60°.
Is the following statement true and false :
A triangle can have at most one obtuse angles.
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
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is
One angle of a triangle is 60°. The other two angles are in the ratio of 5: 7. Find the two angles.
Classify the following triangle according to sides:
In the given figure, AB is parallel to CD. Then the value of b is
