19. A point lying 20 mm below the XY line is the top view of three points P, Q and R. P is 25 mm below HP. The point Q is 35 mm above HP and the point R is in HP. Draw the projections of the three points and state their positions with the reference planes and the quadrants in which they lie.

Problem 3: Find the centroid (x, y) of the shaded shape if b = 8 in. 1.56 2.56 y -26 26 26 b 36 26 -x

The reaction at the support A and B is?

Outline Castigliano's method to determine the displacement and slope at a point in a body?

KINDLY DRAW THE REPRESENTATION WITH THE THREE HEELS Three hills A, B, and C are at elevations 135m, 146m, and 154m respectively above sea level. Distance AB is 3.9km while distance BC is 3.1km.a) Find the effect of curvature and refraction between A and B.b) Determine the effect of curvature and refraction between A and B.c) What would be the height of tower to be constructed at hill C so that the line of sight will clear hill B by 2.5m considering the effect of earth’s curvature and refraction?

Please tell me how to solve this.