Please help me out if you can!! Find the value of x.
246
D
- 1 + 8x
18x + 5
B
W

x = 4°

Step-by-step explanation:

18x + 5 = 46 + (-1 + 8x)     theory of exterior angles of a triangle

18x + 5 = 46 - 1 + 8x

10x + 5 = 46 - 1

10x + 5 = 45

10x = 40

x = 4

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-Chetan K

18x+5=46+(-1+8x){Exterior Angle Property}

18x+5=46-1+8x

18x+5=45+8x

18x-8x=45-5

10x=40

x=4

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

step-by-step explanation: