How many zeros in an Octotrigintillion?

If two triangles can be moved so that thay line up perfectly they are congruent? Is 3D Or 2D better? What is the area of isosceles triangle that has a base of 5cm and a height of 7cm? How do you find the radius of a circle with a circumference of 31.4? How many perpendicular and parallel lines does a diamond? What are two mathematical terms that have homonyms? A cylinders length is 64 inches and the radius is 29 inches what is the volume? What is a figure that has a polygon in which all sides are congruent and all angles are congruent? What is the expresstion of 4 times the difference of a number an 1 is equal to 6 times the sum of a number times 3? How many 18in x 18in tiles to cover 200sqft? What does a picture of a factor tree using the number 224 look like? How do you write in word form 640217211? Is 100cg 1dg? What are different names for a irregular hexagon? Write a program to print following series 1 01 010 1010 .? Is a scalar a component of a vector? What 2 numbers have the product of 7000 and the sum of 55? How many ounces equal 1.42 gallons? What is binary boy? What is 3 percent of 225000.00?