EWT | Academic Question

Questions
Question (21)
QN0018820
Which statement is always true for a rhombus?
  • (A) Diagonals are equal
  • (B) All angles are equal
  • (C) All sides are equal
  • (D) Adjacent sides are unequal

Correct Answer: C
Explanation:

All sides of a rhombus are equal.

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Question (22)
QN0018821
If a rhombus has perimeter 48 cm, then each side measures:
  • (A) 10 cm
  • (B) 12 cm
  • (C) 14 cm
  • (D) 16 cm

Correct Answer: B
Explanation:

Side = 48 ÷ 4 = 12 cm.

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Question (23)
QN0018822
In rhombus ABCD, ∠B = 78°. Find ∠D.
  • (A) 78°
  • (B) 102°
  • (C) 90°
  • (D) 112°

Correct Answer: A
Explanation:

Opposite angles are equal.

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Question (24)
QN0018823
The diagonals of a rhombus are perpendicular. This means they meet at:
  • (A) 30°
  • (B) 45°
  • (C) 90°
  • (D) 180°

Correct Answer: C
Explanation:

Perpendicular lines meet at 90°.

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Question (25)
QN0018824
If one diagonal of a rhombus is 16 cm and O is the point of intersection, then AO =
  • (A) 4 cm
  • (B) 8 cm
  • (C) 16 cm
  • (D) 32 cm

Correct Answer: B
Explanation:

AO = 16 ÷ 2 = 8 cm.

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Question (26)
QN0018825
A rhombus has side length 9 cm. Its perimeter is:
  • (A) 18 cm
  • (B) 27 cm
  • (C) 36 cm
  • (D) 81 cm

Correct Answer: C
Explanation:

Perimeter = 4 × 9 = 36 cm.

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Question (27)
QN0018826
In a rhombus, if ∠P = 128°, then the adjacent angle equals:
  • (A) 42°
  • (B) 52°
  • (C) 62°
  • (D) 72°

Correct Answer: B
Explanation:

Adjacent angle = 180° − 128° = 52°.

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Question (28)
QN0018827
Which quadrilateral has all sides equal and opposite sides parallel?
  • (A) Kite
  • (B) Rhombus
  • (C) Trapezium
  • (D) Rectangle

Correct Answer: B
Explanation:

A rhombus has all sides equal and opposite sides parallel.

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Question (29)
QN0018828
If the perimeter of a rhombus is 64 cm, then one side is:
  • (A) 12 cm
  • (B) 14 cm
  • (C) 16 cm
  • (D) 18 cm

Correct Answer: C
Explanation:

Side = 64 ÷ 4 = 16 cm.

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Question (30)
QN0018829
In a rhombus, opposite angles are 3x° and 3x°. If adjacent angles are 2x°, then x =
  • (A) 30°
  • (B) 36°
  • (C) 40°
  • (D) 45°

Correct Answer: B
Explanation:

3x + 2x = 180°, x = 36°.

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