Question : The perimeter of a parallelogram is 48 cm. If the height of the parallelogram is 6 cm and the length of the adjacent side is 8 cm. Find its area.
Option 1: 90 cm2
Option 2: 80 cm2
Option 3: 84 cm2
Option 4: 96 cm2
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Correct Answer: 96 cm2
Solution : We have, The perimeter, height, and the adjacent side of a parallelogram are 48 cm, 6 cm, and 8 cm. Perimeter of a parallelogram = 2 (Adjacent side + Base) ⇒ 48 = 2 (8 + Base) Or, base = 16 cm We know, Area = Base × Height So, Area = 16 cm × 6 cm = 96 cm2 So, the area of the parallelogram is 96 cm2. Hence, the correct answer is 96 cm2.
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Question : If the altitude of a triangle is 8 cm and its corresponding base is 12 cm, then the area of the triangle will be:
Option 1: 96 cm2
Option 2: 48 cm2
Option 4: 24 cm2
Question : In an isosceles triangle, if the unequal side is 8 cm and the equal sides are 5 cm, then the area of the triangle is:
Option 1: 12 cm2
Option 2: 25 cm2
Option 3: 6 cm2
Option 4: 11 cm2
Question : What is the area of a rhombus whose diagonals are 8 cm and 13 cm?
Option 1: 52 cm2
Option 2: 96 cm2
Option 3: 44 cm2
Option 4: 84 cm2
Question : The sides of a triangle are of length 8 cm, 15 cm, and 17 cm. Find the area of the triangle.
Option 1: 65 cm2
Option 2: 75 cm2
Option 3: 60 cm2
Option 4: 70 cm2
Question : The sides of a triangle are 16 cm, 12 cm, and 20 cm. Find the area.
Option 1: 64 cm2
Option 2: 112 cm2
Option 3: 96 cm2
Option 4: 81 cm2
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