How many squares in a 20x20 gabled garage roof?

To begin an indirect proof you assume the inverse of what you intend to prove is true true or false? What is a polygon that has 4 unequal sides and no right angles? How big is 10meters squared? Do polygons have to have equal sides? How many yards are there in 90 inches? Which axis of a hyperbola is prependicular to the conjugate axis? What is the Top of a mineshaft called? What is the formula for finding the distance around A semicircle? How many faces does a 3-dimensional pentagon have? How do you find the remaining legs of a 45 45 90 isosceles right triangle given a hypotenuse of 48 inches? What is the size of one interior angle of a regular 16 sided shape? Why is not possible to make an equilateral triangle on a geoboard? 3.7 million miles is how many acres? Is it true that Some rhombuses are squares? Why why is hypotenuse called a hypotenuse? How many bundles of roofing shingles to cover 260 square feet plus ridge cap? Is a parallelogram inscribed in a circle always a rectangle? Are parallelograms squares? What shapes have right angles and are symmetrical? Can a regular PENTAGON be used to make a tessellation?