Practice Pakistan questions with answers and explanations.
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Square area is side squared.
Thus, 9² = 81 cm².
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The total interior angle sum is 720°.
Dividing by 6 equal angles gives 120°.
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The side length is √144 = 12 cm.
The perimeter is 4 × 12 = 48 cm.
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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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Triangle area is one-half × base × height.
Thus, 1/2 × 10 × 6 = 30 cm².
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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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Parallelogram area is base times perpendicular height.
Thus, 15 × 8 = 120 cm².
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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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Area is one-half × sum of parallel sides × height.
Thus, 1/2 × 22 × 5 = 55 cm².
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The diameter is twice the radius.
Thus, 2 × 7 = 14 cm.
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Circumference is 2πr.
Thus, 2 × 22/7 × 7 = 44 cm.
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One complete revolution corresponds to 360 degrees.
Therefore, the central angle of a full circle is 360°.
