Question

which congruence theorem can be used to prove $\triangle wxscong\triangle yzs$?
sss
asa
sas
hl

Explanation:

Step1: Identify right angles

$\angle WXS=\angle YZS = 90^{\circ}$ (right angles).

Step2: Identify hypotenuse and leg

$WS = YS$ (hypotenuse), $WX=YZ$ (leg).
By the Hypotenuse - Leg (HL) congruence theorem for right - angled triangles, $\triangle WXS\cong\triangle YZS$.

Answer:

HL