Geometry Q

The line L passes through the points P ( -1,2) and Q (11,8). A) Find an equation for L in the form y= mx+c, where m and c are constants. ( I'm fine with this part of the question) B) The line Z passes through the point R (10,0) and is perpendicular to L. The lines L and Z intersect at the point S. Calculate the coordinates of S ( to find the coordinates of S you equate the first equation L to the equation of the second line Z and then find the values of x and y I think? Please correct me if I'm wrong) C) Show that the length of RS is 3 square root 5 (Use formula of finding the length of a straight line)

D) Hence, or otherwise, find the exact area of triangle PQR This is the part I'm struggling with, please answer if you can Thanks

Roland drove 8 miles east and 5 miles north, how far is he from the starting point? Round to the nearest tenth.

OK there is a diagram a rectangle with a triangle on top. The triangles base is 6 while the height is 4. Thevrectangles base is 36 and it's height is 20. Here is the question: The diagram gives the dimensions of a swimming pool.If a cover is needed for the pool,what will be the approximate area of the cover?

It's about quadrilaterals inscribed in circles.

i need help with geometery angles in parallel lines

a triangle with one obtuse angle