Question

In: Advanced Math

Let ∆ABC be a triangle in R2 . Show that the centroid G is located at...

Let ∆ABC be a triangle in R2 . Show that the centroid G is located at the

average position of the three vertices:

G = 1/3(A + B + C).

Solutions

Expert Solution

Here we use the properties of centroid and median of a triangle.

We also make use of "Internal Division Formula" for line segment.

Hence the centroid = (A+B+C)/3.


Related Solutions

let triangle ABC be a triangle in which all three interior angles are acute and let...
let triangle ABC be a triangle in which all three interior angles are acute and let A'B'C' be the orthic triangle. a.) Prove that the altitudes of triangle ABC are the angle bisectors of triangle A'B'C'. b.) Prove the orthocenter of triangle ABC is the incenter of traingle A'B'C'. c.) Prove that A is the A' -excenter of triangle A'B'C'.
let r1 and r2 be the relations represented as r1 (ABC) and r2 (ADE) .Assume the...
let r1 and r2 be the relations represented as r1 (ABC) and r2 (ADE) .Assume the corresponding domains of both the tables are same.r1 has 2000 tuples and r2 has 4500 tuples 1.common tuples between r1 and r2 are 500, what would be the resultant number of tuples for r1-r2, justify your answer 2.assuming 500 as the common tuples between r1 and r2,what is the maximum number of tuples that results in ]] A( r1) U ]] A r2. justify...
Let J be the antipodal of A in the circumcircle of triangle ABC. Let M be...
Let J be the antipodal of A in the circumcircle of triangle ABC. Let M be the midpoint of side BC. Let H be the orthocenter of triangle ABC. Prove that H, M, and J are collinear.
Let J be the antipodal of A in the circumcircle of triangle ABC. Let M be...
Let J be the antipodal of A in the circumcircle of triangle ABC. Let M be the midpoint of side BC. Let H be the orthocenter of triangle ABC. Prove that H, M, and J are collinear.
Let F and G~be two vector fields in R2 . Prove that if F~ and G~...
Let F and G~be two vector fields in R2 . Prove that if F~ and G~ are both conservative, then F~ +G~ is also conservative. Note: Give a mathematical proof, not just an example.
Abstract Algebra Let G be a discrete group of isometries of R2. Prove there is a...
Abstract Algebra Let G be a discrete group of isometries of R2. Prove there is a point p ∈ R2 whose stabilizer is trivial.
Let X and Y be two independent random variables, and g : R2 --> R an...
Let X and Y be two independent random variables, and g : R2 --> R an arbitrary bivariate function. 1) Suppose that X and Y are continuous with densities fX and fY . Prove that for any y ? R withfY (y) > 0, the conditional density of the random variable Z = g(X, Y ) given Y = y is the same as the density of the random variable W = g(X, y). 2) Suppose that X and Y...
Let D3 be the symmetry group of an equilateral triangle. Show that the subgroup H ⊂...
Let D3 be the symmetry group of an equilateral triangle. Show that the subgroup H ⊂ D3 consisting of those symmetries which are rotations is a normal subgroup.
plot each point and form the triangle ABC. Verify that the triangle ABC is a right...
plot each point and form the triangle ABC. Verify that the triangle ABC is a right triangle. Find its area. A= (-5, 10) B (2,7) C (-1,0)
4.- Show the solution: a.- Let G be a group, H a subgroup of G and...
4.- Show the solution: a.- Let G be a group, H a subgroup of G and a∈G. Prove that the coset aH has the same number of elements as H. b.- Prove that if G is a finite group and a∈G, then |a| divides |G|. Moreover, if |G| is prime then G is cyclic. c.- Prove that every group is isomorphic to a group of permutations. SUBJECT: Abstract Algebra (18,19,20)
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT