A, b and d are points on the circumference of a circle centre o.
edc is a tangent to the circle.
angle bdc = 57°
find the size of angle aob.
you must give a reason for each stage of your working.

Uestion 1(multiple choice worth 5 points) (05.02)alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painting. calculate the area of the isosceles trapezoid. isosceles trapezoid with top base 12 feet, bottom base of 18 feet, and height of 6 feet. 72 ft2 84 ft2 90 ft2 108 ft2

What line represents the relationship between r and s

Write the point-slope form of an equation of the line through the points (-2, -3) and (-7, 4).