1. where is the circumcenter of a right triangle located?
a. inside the triangle
b. at a vertex of the triangle
c. on a side of the triangle
d. outside the triangle

2. what are the coordinates of this circumcenter of a triangle? (coordinates a(1, 1), b(1, -3), c(7, -3))

3. where is the incenter of an obtuse triangle located?
a. outside the triangle
b. on the triangle
c. inside the triangle
d. cannot be determined

the answer for 1 is on the triangle

Step-by-step explanation:

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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