Questions: What additional information is needed to prove the 2 triangles are congruent by the listed theorem?
∠ GIH = ∠ MKL
MK = GI
∠ MLK = ∠ GHI
Transcript text: What additional information is needed to prove the 2 triangles are congruent by the listed theorem?
$\angle \mathrm{GIH}=\angle \mathrm{MKL}$
$\overline{M K}=\mathrm{GI}$
$\angle \mathrm{MLK}=\angle \mathrm{GHI}$
Solution
Solution Steps
Step 1: Analyze the given information
We are given two triangles, $\triangle$MKL and $\triangle$GIH. We are also told that LK $\cong$ IH. We are looking for the additional information needed to prove the triangles congruent by SAS.
Step 2: Determine what SAS means
SAS stands for Side-Angle-Side. This means we need two congruent sides and the included angle between those sides to be congruent.
Step 3: Determine the solution
We are given that LK $\cong$ IH. To have SAS, we need the angles between these sides to be congruent and the other sides next to the angles to be congruent. So, we need ∠LKM $\cong$ ∠GHI and MK $\cong$ GI.