The sides of triangle abc are 4.5 feet, 7.5 feet, and 9 feet long. the area is about 17 square feet. explain how to use the area of triangle abc to find the area of a triangle def with side lengths 6 feet, 10 feet, and 12 feet.

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4