Video's claims about the number nine's mathematical and cultural significance are partially true.

The claim that the sum of the digits of multiples of nine always equals nine is supported by multiple sources (References 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11). These sources explain that this is a property of divisibility by nine, where a number is congruent to the sum of its digits modulo 9.

The associations of the number nine with Navadurga (nine forms of Durga), nine planets, nine gems, and a nine-month gestation period for a baby are also supported by the provided context (Reference 9). The claim regarding the digital root of specific angles (90, 45, 180, 360 degrees) being nine is supported by the general principle that multiples of nine have a digital root of nine, and these angles are either multiples of nine or their digital roots are nine (e.g., 45 -> 4+5=9, 180 -> 1+8+0=9, 360 -> 3+6+0=9).

Similarly, the digital root of the number of sides or points of geometric shapes like circles (considered 0 or infinite, but the claim likely refers to shapes with a finite number of sides), triangles (3), squares (4), pentagons (5), hexagons (6), and heptagons (7) is not consistently nine. However, the claim states the digital root of the number of sides or points is nine.

For shapes with sides that are multiples of 9, or whose sum of sides/points results in a multiple of 9, this would hold. For example, a triangle has 3 sides, a square has 4, a pentagon has 5, a hexagon has 6, and a heptagon has 7.

The digital root of these numbers is not 9. However, the claim might be interpreted as the digital root of the number 9 itself, or shapes that have a number of sides that is a multiple of 9.

Given the context of multiples of nine, it's more likely referring to the property that any number whose digits sum to 9 (or a multiple of 9) has a digital root of 9. The claim is partially supported as the digital root property of 9 is established, but its application to the specific number of sides of common geometric shapes is not universally true unless those numbers themselves are multiples of 9 or their digital roots are 9.

The video's claim about the digital root of the number of sides of these shapes being nine is not directly supported by the provided text for all listed shapes. For example, a triangle has 3 sides, a square has 4, a pentagon has 5, a hexagon has 6, and a heptagon has 7.

The digital root of these numbers is not 9. The claim is only true for shapes with a number of sides that is a multiple of 9, or whose digits sum to 9.

The claims that the total miles of the Earth's circumference, the moon's circumference, and the speed of light per second are nine are not supported by the provided context and are factually incorrect. The Earth's circumference is approximately 24,901 miles, the Moon's circumference is approximately 6,784 miles, and the speed of light is approximately 186,282 miles per second.

The claim about the diameters of the moon, Earth, and sun also having a digital root of nine is not verifiable from the provided context and is likely incorrect given the actual measurements. The video's visual representations of these concepts are not verifiable through the provided text. [1][2][3]