Question

Geometry question I need help with the true or false

Answer 1

See below

Explanation:

SAS says the two triangles are congruent

so side 6x-4 = 3x+8 then x = 4

x= 4 true

x = 3 false ( because we just found it = 4)

Pythag theorem says QT

(6x-4)^2 = QT^2 + 12^2

( 6(4)-4)^2 = 12 ^2 + QT^2

400 -144 = QT^2

QT = 16 true