Find the sum of interior angles of a regular polygon with 18 sides.

Which of the following is the shape of a cross section of the figure shown below

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

An object in geometry with no width, length or height is a(n):