Explanation

The angle sum of a triangle will always be equal to 180°.

The angle sum of a quadrilateral is equal to 360°

And a triangle can be created by slicing a quadrilateral in half from corner to corner. Since a triangle is essentially half of a quadrilateral

Its angle measures should be half as well. Half of 360° is 180°

Explanation

 Decrease = 25,000 - 24,500 = 500

Percentage decrease = (500 / 25,000) × 100 = 2%

Explanation

A cuboid is a 3D solid shape bounded by six rectangular faces.

Opposite faces of a cuboid are equal and each angle is a right angle.

Explanation

The surface area of a sphere depends only on the radius (r) and is given by the formula 4πr².

This formula comes from calculus and represents the total area covering the outer layer of a perfect sphere.

Explanation

36 is a composite number as it has factors other than 1 and itself.

Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.