Which pairs of triangles appear to be congruent? check all that apply.
a. triangles 1 and 4
o b. triangles 1 and 3
c. triangles 2 and 3
d. triangles 2 and 4
e. triangles 3 and 4
o
f. triangles 1 and 2
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do i do it on a graph?

step-by-step explanation:

answer is c

step-by-step explanation:

81/12=324/x

x=48

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²

the train arrives at 20: 27 hope i