Geometry

In my book there's a picture of an equalderal triangle. This is given information. Inside the triangle all three altitudes have been drawn to find the center point of gravity. The incircle is drawn. The circumcircle is drawn. Given that the radius of the...

h t t p : / / i m g 3 5 . i m a g e s h a c k . u s / i m g 3 5 / 8 0 8 7 / 4 7 2 4 1 4 6 9 . j p g my book says if a1 is perpendicular to a2 and b1 is perpeindicular to b2 then angle one equal angle two WHY???? Also I remeber it was very simple but don't...

The endpoints of the diameter of a circle are (-6,2) and (10,-2). What are the coordinate of the center of the circle?

The sides and classifications of a triangle are given below. The length of the longest side is the integer given. What value(s) of x make the triangle? x,x, 8; right Please provide an explanation as well. Thank you.

One side of a prallelogram is 4.8 cm and the other side is 3/2 times the first side,find the perimeter of the parallelogram

3= -50/6 + b do you times 3/1 by 6 getting 18/6 in the end then do you add 50/6 getting 68/6????

Are two kites always, sometimes, or never similar? a. Always b. Sometimes*** c. Never

Which equation describes the line that contains (1, 5) and has a slope of 2? a. y = 2x - 9 b. y = 2x + 3 c. y = 2x + 9 d. y = 2x - 3

don't you have to balance out both sides of the equation? i could be wrong but wouldn't it be 2Fe(OH)^2 + H^2O^2 => 2Fe(OH)^3

hah funny thing. i put geometry instead of my name cus geometry was my question but my names anna. =P but no problem

the image of trapezoid pqrs after a reflection across wy is trapezoid pqrs