Geometry & Mensuration
90 questions available
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Q1.If the perimeter of equatorial triangle is 60.Find its area
Correct Answer: B
For equilateral triangle with perimeter 60, side=20. Area = (√3/4)×20² = 100√3 cm².
Q2.Length 58.7 and width 23.2, find the perimeter.
Correct Answer: A
Perimeter = 2(length + width) = 2(58.7+23.2) = 2(81.9) = 163.8 ≈ 164.
Q3.The area of a triangle is 216 cm² and its sides are in ratio 3:4:5. The perimeter of the triangle is?
Correct Answer: C
Using the 3-4-5 right triangle ratio and the given area, the perimeter works out to 72cm.
Q4.Find the Perimeter of square if the area is 256cm2?
Correct Answer: C
Q5.The total perimeter of a semicircle is 20.6 cm. What is the approximate radius of the semi-circle?
Correct Answer: A
Perimeter of a semicircle = πr + 2r = r(π+2). Setting r(π+2) = 20.6 gives r ≈ 4 cm.
Q6.What is the perimeter of a semi-circle lake having a radius of 700m?
Correct Answer: B
Perimeter = πr + 2r = 700(π+2) ≈ 3600m = 3.6 km.
Q7.What is the area of a rectangle with length 6 cm and width 5 cm?
Correct Answer: A
Area = length × width = 6 × 5 = 30 cm².
Q8.What is the area of a rectangle with length 7 cm and width 6 cm?
Correct Answer: A
Area = length × width = 7 × 6 = 42 cm².
Q9.What is the area of a rectangle with length 8 cm and width 7 cm?
Correct Answer: A
Area = length × width = 8 × 7 = 56 cm².
Q10.What is the area of a rectangle with length 9 cm and width 8 cm?
Correct Answer: A
Area = length × width = 9 × 8 = 72 cm².
Q11.What is the area of a rectangle with length 10 cm and width 9 cm?
Correct Answer: A
Area = length × width = 10 × 9 = 90 cm².
Q12.What is the area of a rectangle with length 11 cm and width 10 cm?
Correct Answer: A
Area = length × width = 11 × 10 = 110 cm².
Q13.What is the area of a rectangle with length 12 cm and width 11 cm?
Correct Answer: A
Area = length × width = 12 × 11 = 132 cm².
Q14.What is the area of a rectangle with length 13 cm and width 12 cm?
Correct Answer: A
Area = length × width = 13 × 12 = 156 cm².
Q15.What is the area of a rectangle with length 14 cm and width 13 cm?
Correct Answer: A
Area = length × width = 14 × 13 = 182 cm².
Q16.What is the area of a rectangle with length 15 cm and width 14 cm?
Correct Answer: A
Area = length × width = 15 × 14 = 210 cm².
Q17.1/5 of sum of two angle is 24 and half of their difference is 14. Find the larger angle
Correct Answer: A
Q18.If a height of a right triangle is 4 less than its base. If the hypotenuse is 10 cm find the length of two sides
Correct Answer: C
Q19.The border line area between Pakistan and India at Sir Creek disputed area of Sindh is called?
Correct Answer: B
Q20.Angles of a parallelogram are represented as:
Correct Answer: B