HOTs for Maths Olympiad - 1 - Class 5 MCQ

• The sum of the angles in a triangle is always 180 degrees, which makes Statement I true. A square has 4 sides of equal length, not different lengths, making Statement II false.
• Therefore statement 1 is true and statement II is false.

The fraction 3/4 is greater than 2/3; it is true, making Statement I true. The decimal 0.75 is indeed equivalent to 3/4, making Statement II true.

The perimeter of a rectangle is calculated as

2(length + width)

= 2(5 + 3) = 16 cm

Which makes Statement I true.

The area is calculated as

length × width

= 5 × 3 = 15 cm²

Which make Statement II true.

1. LCM of 4 and 6:

   • Prime factorization: 4=2², 6=2¹⋅3¹
   • LCM = 2²⋅3¹=12
   • Statement I is true.

2. GCD of 4 and 6:

   • Common prime factor: 2, lowest power is 2¹.
   • GCD = 2.
   • Statement II is true.

Both statements are true.

A hexagon has 6 sides, not 5, making Statement I false.

The sum of the interior angles of a hexagon is (6-2)×180 = 720 degrees, making Statement II true.

The number 4532 rounded to the nearest hundred is 4500, making Statement I true. The number 6789 rounded to the nearest thousand is 7000, making Statement II true.

A circle has a diameter that is twice the length of its radius, making Statement I true.

The area of a circle is found using the formula πr², making Statement II true.