The vertices of a triangle are a(7, 5), b(4, 2), and c(9, 2). what is m`/_abc`?

The vertices of a triangle are A(7, 5), B(4, 2), and C(9, 2)

First we need to find the length of each side of the triangle using Distance formula, d =

Length of side AB, c=

=

=

=

Length of side BC, a=

=

=

= 5

Length of the side AC, b =

=

=

Cos B =

Cos B =

Cos B =

Cos B=

Cos B =

By taking Inverse Cosine function,

B= Cos⁻¹ ()

B= 45°

The measure of angle ABC is 45°

step-by-step explanation:

$11.01

$16

$15

$4

hope this

21.4 i did it already for s1

step-by-step explanation: