Find the coordinates of the other two vertices, Mathematics

Assignment Help:

The two opposite vertices of a square are (-1, 2) and (3, 2). Find the coordinates of the other two vertices.                                                                                                                                           (Ans: (1, 0), (1, 4))

Ans :  AB = BC ⇒ AD2 = BC2

(x + 1)2 + (y-2)2 = (x-3)2 + (y-2)2

x2 + 2x + 1 + y2 - 4y + 4 = x2 - 6x + 9 + y2 - 4y + 4

2x - 4y + 5 = - 6x - 4y + 13

8x = 13 - 5      8x =     8  ⇒   x = 1

On substituting in (x-3)2 + (y-2)2 + (x+1)2 + (y-2)2

= (-1 -3)2 + (2 - 2)2

We get y = 4 or 0.

∴B (1, 4) or (1, 0)

AD = DC ⇒ AD2 = DC2

(x1 + 1)2 + (y1-2)2 = (x1-3)2 + (y1-2)2

∴ x = 1.

On substituting in (x1 + 1)2 + (y1-2)2 + (x1-3)2 + (y1-2)2 = 16

We get y1 = 0 or 4.

∴ D (1, 4) or (1, 0)

∴the opposite vertices are (1, 4) & (1, 0)


Related Discussions:- Find the coordinates of the other two vertices

Rental car agency has 50 cars, Rental car agency has 50 cars. Rental rate i...

Rental car agency has 50 cars. Rental rate in winter is 60%. What is probability that in give winter month the rental rate is fewer than 35 cars rented? Use normal distribution to

Least cost method in operations research, algorithm and numerical examples ...

algorithm and numerical examples of least cost method

Statistics, do we calculate midpoints from classes or from class boundaries...

do we calculate midpoints from classes or from class boundaries

Determine the probability , A medical survey was conducted in order to esta...

A medical survey was conducted in order to establish the proportion of the population which was infected along with cancer. The results indicated that 40 percent of the population

Properties of relations in a set, Reflexive Relations: R is a reflexive...

Reflexive Relations: R is a reflexive relation if (a, a) € R,  a € A. It could be noticed if there is at least one member a € A like (a, a) € R, then R is not reflexive. Sy

Problem solving, Let E; F be 2 points in the plane, EF has length 1, and le...

Let E; F be 2 points in the plane, EF has length 1, and let N be a continuous curve from E to F. A chord of N is a straight line joining 2 points on N. Prove if 0 and N has no cho

Vertical tangent for parametric equations, Vertical Tangent for Parametric ...

Vertical Tangent for Parametric Equations Vertical tangents will take place where the derivative is not defined and thus we'll get vertical tangents at values of t for that we

Abels theorem, If y 1 (t) and y 2 (t) are two solutions to y′′ + p (t ) ...

If y 1 (t) and y 2 (t) are two solutions to y′′ + p (t ) y′ + q (t ) y = 0 So the Wronskian of the two solutions is, W(y 1 ,y 2 )(t) = =

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd