Advertisements
Advertisements
प्रश्न
What value of y would make AOB a line in below fig, if ∠AOC = 4y and ∠BOC = (6y +
30)
उत्तर
Since `∠`AOC, `∠`BOC are linear pair
⇒ `∠`AOC + `∠`BOC = 180°
⇒ 6 y + 30 + 4 y = 180°
⇒ 10 y + 30 = 180°
⇒ 10 y = 180° - 30°
⇒ 10 y = 150°
⇒ y = `(150°)/10`
⇒ y = 15°
APPEARS IN
संबंधित प्रश्न
In the given figure, lines AB and CD intersect at O. If ∠AOC + ∠BOE = 70° and ∠BOD = 40°, find ∠BOE and reflex ∠COE.
In the given figure, POQ is a line. Ray OR is perpendicular to line PQ. OS is another ray lying between rays OP and OR. Prove that ∠ROS = `1/2` (∠QOS − ∠POS).
Write the complement of the following angles.
77°
Two supplementary angles differ by 48°. Find the angles.
If the supplement of an angle is three times its complement, find the angle.
In Fig. 8.42, a is greater than b by one third of a right-angle. Find the values of a and b.
In below figure, lines AB and CD intersect at O. If ∠AOC + ∠BOE = 70° and ∠BOD =
40°, find ∠BOE and reflex ∠COE.
statement are true and false
Angles forming a linear pair can both the acute angles.
The opposite sides of a quadrilateral are parallel. If one angle of the quadrilateral is 60°,
find the other angles.
In the given figure, if AB || HF and DE || FG, then the measure of ∠FDE is
