Question

HAPPY REPUBLIC DAY
Please help it's urgent
Tomorrow is my maths exam
Class 9th
Chapter Quadrilaterals
Don't even try to post irrevalent answers otherwise your 10 answers will be deleted
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Answer 1

Answer:

50

Step-by-step explanation:

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Answer 2

AnswEr :

• We are given that, a diagonal of a rectangle is inclined to one side of the rectangle at 25°.
• We need to find the acute angle between the diagonals is = ?
• So, first assume the acute angle between diagonals be m.
• As we know that, the diagonals of rectangle are equal in length. Hence, PR = QS.
• Divide both the sides by 2 and we get :

⇢½ PR = ½ QS

• Here, O is the midpoint of PR and QS. So we get :

⇢OS = OR

• As we know that, angle opposite to the equal sides are equal. Hence we get :

⇢m∠OSR = m∠n = 25°

• Exterior angles of a ∆ is equal to the sum of the two opposite interior angles :

⇢∠QOR = ∠OSR + ∠ORS

⇢∠m = = 25° + ∠n

⇢∠m = 25° + 25°

⇢∠m = 50°

• Therefore, the acute angle between diagonals is 50°.