class 9 math worksheet, Assignments of Mathematics

Class 9 math worksheet chapters: Quadrilaterals & Surface Areas and Volumes

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Pre 2010

Uploaded on 11/17/2025

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📘 Class 9 Mathematics Worksheet
Chapters: Quadrilaterals & Surface Areas and Volumes
📘 Chapter: Quadrilaterals
A. Multiple Choice Questions (MCQs)
1. The sum of all interior angles of a quadrilateral is:
a) 360°
b) 180°
c) 540°
d) 720°
2. In a parallelogram, opposite sides are:
a) Unequal
b) Equal
c) Parallel but not equal
d) Always perpendicular
3. A quadrilateral with exactly one pair of parallel sides is called:
a) Rhombus
b) Trapezium
c) Square
d) Kite
4. In a rectangle, the diagonals are:
a) Unequal
b) Perpendicular
c) Equal
d) No relation
5. In a rhombus, the diagonals:
a) Bisect each other at right angles
b) Are equal
c) Are parallel
d) Never intersect
B. Fill in the Blanks
1. The opposite angles of a cyclic quadrilateral are __________.
2. A square is both a __________ and a __________.
3. In a parallelogram, diagonals __________ each other.
4. A kite has two pairs of __________ sides.
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📘 Class 9 Mathematics Worksheet Chapters: Quadrilaterals & Surface Areas and Volumes 📘 Chapter: Quadrilaterals A. Multiple Choice Questions (MCQs)

  1. The sum of all interior angles of a quadrilateral is: a) 360° b) 180° c) 540° d) 720°
  2. In a parallelogram, opposite sides are: a) Unequal b) Equal c) Parallel but not equal d) Always perpendicular
  3. A quadrilateral with exactly one pair of parallel sides is called: a) Rhombus b) Trapezium c) Square d) Kite
  4. In a rectangle, the diagonals are: a) Unequal b) Perpendicular c) Equal d) No relation
  5. In a rhombus, the diagonals: a) Bisect each other at right angles b) Are equal c) Are parallel d) Never intersect B. Fill in the Blanks
  6. The opposite angles of a cyclic quadrilateral are __________.
  7. A square is both a __________ and a __________.
  8. In a parallelogram, diagonals __________ each other.
  9. A kite has two pairs of __________ sides.
  1. A quadrilateral with both pairs of opposite sides parallel is called a __________. C. True or False
  2. All rectangles are parallelograms.
  3. A trapezium has two pairs of parallel sides.
  4. Diagonals of a square are equal.
  5. In a rhombus, opposite angles are equal.
  6. Every parallelogram has all equal sides. D. Solve the Following
  7. In quadrilateral ABCD, ∠A = 75°, ∠B = 110°, ∠C = 95°. Find ∠D.
  8. If one angle of a parallelogram is 65°, find the other three angles.
  9. In a rhombus, diagonals are 16 cm and 30 cm. Find the length of each side.
  10. A cyclic quadrilateral has ∠A = 110°. Find ∠C.
  11. Show that a square is always a rectangle but a rectangle is not always a square (reasoning). 📘 Chapter: Surface Areas and Volumes A. Multiple Choice Questions (MCQs)
  12. Total surface area of a cuboid = a) 2(lb + bh) b) 4(lb + bh) c) 2(lb + bh + hl) d) lbh
  13. Volume of a cylinder is: a) πr²h b) 2πrh c) πr³ d) ½πr²
  14. Curved surface area of a cone is: a) πrl
  1. A cone has radius 4 cm and height 8 cm. a) Find the slant height b) Find the total surface area of the cone
  2. A wooden box is shaped like a cuboid with dimensions 15 cm × 10 cm × 8 cm. Find the total surface area and volume of the box.
  3. A sphere of radius 7 cm is melted and recast into a cone of radius 7 cm. Find the height of the cone.