Why is this a right triangle? explain. you so much!

ABC is a right triangle

Step-by-step explanation:

Perpendicular lines have 90 degree angles.

Perpendicular lines have slopes that are negative reciprocals, that means when you multiply them together they equal -1

Slope AB * slope BC = -1

2/5 * -5/2 = -1

   -1 = -1

So AB is perpendicular to BD, which means it forms a 90 degree angle

That means ABC is a right triangle

stops on an even number.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have