Practice Pakistan questions with answers and explanations.
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Cylinder volume is πr²h.
Thus, π × 9 × 10 = 90π cm³.
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Curved surface area is 2πrh.
Thus, 2π × 4 × 7 = 56π cm².
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A rhombus is defined by four equal sides.
Its angles need not be right angles.
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Under the common school definition, a trapezium has one pair of parallel sides.
Parallelograms have two pairs.
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The sum is (n - 2) × 180°.
For n = 5, this is 3 × 180° = 540°.
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The total interior angle sum is 720°.
Dividing by 6 equal angles gives 120°.
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The exterior angles of any polygon sum to 360°.
For a regular octagon, each is 360° ÷ 8 = 45°.
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The number of diagonals is n(n - 3)/2.
For n = 6, this gives 6 × 3 ÷ 2 = 9.
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Substitute x = 5 into the function.
Then f(5) = 2(5) + 1 = 11.
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An angle subtended by a diameter at the circumference is a right angle.
This result is known as Thales' theorem.
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The three interior angles of every Euclidean triangle sum to 180°.
This is a fundamental angle property.
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The diameter is twice the radius.
Thus, 2 × 7 = 14 cm.
