math

A is the point (1,1), B is (4,5) and C is (5,3). Find
a)the angle between AB and a line parallel to the y axis.
b)the angle between BC and a line parallel to the y axis.
c)Hence, find ABC (angle B).

I have drawn the points. Please help!!!

  1. 👍 0
  2. 👎 0
  3. 👁 24
  1. a) In going from A to B, y increases by 4 while x increases by 3. The tangent of angle that the line makes with the y axis is 3/4. That makes the angle 36.87 degrees

    b) In going from B to C, y decreases by 2 while x increases by 1. The line points downward and makes an angle tan^-1 1/2 = 26.56 degrees with the -y axis, or 153.43 with the +y axis. The angle at B is the supplement of 153.43 - 26.56 = 126.87, or 53.12 degrees.

    You need to work with the figure to followe these steps, and I can't draw the figure for you. It might be easiest to get the angle A by computing the direction of AC first.

    1. 👍 0
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. Geometry Inscribed Angles Multiple Choice

    Find the measure of angle BAC. {There's an image of a circle with an angle from the top left side going to the bottom of the right side. Point A is the point at the top left side starting the angle, and B is at the bottom and

    asked by LeXi<3 on May 17, 2012
  2. geometry

    given" triangle KL, LM=12 measure of angle k=60 mesure of angle m=45 find the perimeter is got the angle L is 75 (sum of angles therom) land then I drew a line from point k to line LM the line forms a right angl (by construction).

    asked by eve on October 11, 2017
  3. geometry

    obtuse triangle ABC with obtuse angle B. Point D on side AC such that angle BDC is also obtuse. Angle DAB is 2/3 of angle ABD. Angle BCD is 1/5 of angle CBD is 4 more than angle BAD. Find the measure of angle ABC.

    asked by suzy on November 30, 2010
  4. Geometry

    Please answer at least one . PLEASE 1. Triangle XYZ has a right angle at Y. V,W are on XZ such that XV=XY. WZ=YZ, find ANGLE VYW . 2. STUVWXYZ is a regular octagon. Find SW/ TZ. 3. The interior angles of a convex polygon form an

    asked by Jayden on October 19, 2013
  5. math

    In a square ABCD, point P is chosen inside ABCD and point Q outside ABCD such that APB and BQC are congruent isosceles triangles with angle APB = angle BQC = 80 degrees. T is a point where BC and PQ meet. Find the size of angle

    asked by Lola on August 28, 2018
  6. Trig

    I have a diagram of how far a discus was thrown. From A to B is 100m, C is perpendicular to A, from A to C is 50m, A and B are connected to D (it should be a triangle), A has a 40° angle and B has a 75° angle. C is not

    asked by Anonymous on March 13, 2016
  7. Math

    The illustration shows the two cameras pointing at the right side of hole H1. The angles at the base of the triangle are 65 degrees and 105 degrees. 7. a. Find the distance from point A to point C. b. Find the distance from point

    asked by Scar on September 17, 2017
  8. trigonometry

    The angle of elevation of the top of a tower to point A on the ground is 61 degrees. At point B it is 600 feet farther from the base, in line with the base and the first point and in the same plane, the angle of elevation is 32

    asked by berriengk on March 18, 2010
  9. trigonometry

    A sled travels from point A at the top of a hill to Point B at the bottom. If the distance from point A to point B is 120 m and the vertical change is 50 m, find the angle of depression to the nearest degree.

    asked by Anonymous on May 26, 2014
  10. Math PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    1. Find the value of x in the figure. intersecting lines (1 point)40¨¬ 50¨¬ 140¨¬ 180¨¬ 2. Which word best completes this statement? Adjacent angles are ___________ congruent. (1 point)always sometimes never none of these

    asked by Miranda Lambert on January 11, 2016
  11. Maths

    From a point on a ground the angle of elevation from a tower is observed to be 60 degree. From a point on 40meter vertically above the first point of observation the angle of elevation from a tower is 30degree. Find the height of

    asked by Arun on November 6, 2016

More Similar Questions