Geometry Answers

A, B, C, D are four points taken on a line in that order. AB = a, BC = b, CD = c. P is a point outside this line. Measures of angles APB = BPC = CPD = θ. Prove that cos^2(θ) = (a + b)(b + c)/4ac

point D is in the interior of angel ABC, angle ABC= 10x - 7, angel ABD= 6x +5, and angel DBC= 36 degrees, what is angel ABD?

how to prove the volume formula of a pyramid is 1/3xhx(area of the surface)?

I need manual solution for an introduction to riemannian Geometry Gudmundsson Sigmundur.
How can i find?

in any triangle ABC,the angle bisector of angle A and perpendicular bisector of BC intersect.prove that they intersect on the circumcircle of the triangle ABC

A SECTOR OF 120 DEGREE CUT OUT FROM A CIRCLE HAS AN AREA OF 66/7 SQ CM.THE RADIUS OF THE CIRCLE IS ????

I have a simple right angle triangle. All I am given is h (the hypotenuse) and that ratio of x:y is 2:3. What is the formula to find x and y in terms of h?

In triangle ABC m(<A)=30. M(<C)=80. a+2b=15 cm,find the value of c and the length of the radius of the circle

how do you draw if angle qop and qor are complementary but angle por is not a right angle?

what is the volume in liters of a cubical tank if the sides is 7dm