1. The model of an aircraft is in the scale 1 : 80.
a) If the wingspan of the model is 25 cm, what is the wingspan of the actual aircraft in meter?
b) If the real aircraft is 40 meters long, what is the length of the model in centimeters?

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?

The base of a pyramid is a square with 5 lines of 5cm the slant height of each lateral face of the pyramid is 6 cm what is the surface area of the pyramid

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?