Ira build a model of the great pyramid in egypt for a school project. the great pyramid has square base with sides of leght 756 ft. the legth of the great pyramid is 481 ft. ira made his model pryramid using a scale of 1 in. : 20 ft.
1. what is the leght of each side of the base of iras pryramid?
2.what is the area of the base of iras pyramid?
3.what is the height of iras pyramid?
4. ira built model using cross sections that were cut parallel to the base. what shape was each cross section?

Intersecting secant-tangent theorem states that if a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment.so to break it down: 1. pq acts as the tangent and ps as the secant with an intersection at p.sr = 21rp = 3x + 3pq = 4x + 4following to equation: tangent squared = the two segments multiplied by each otherso (4x + 4) ^ 2 = (3x + 3) • (21) simplifies to 16x^2 - 31x - 47 = 0 or (16x - 47)(x + 1) x = -1 or x = 47/162. pq acts as the tangent and ps as the secant with an intersection at p (again! )sr = 16rp = xpq = 15(15) ^ 2 = 16 • x225 = 16xx = 225/163. the interesting chords are proportional to each other so a ratio is possible to set up: ap dp 10 3 + x = = —— = pc pb 8 xcross multiple to get 10x = (3 + x)(8)x = 12