To determine which right triangle has an unknown leg measure of \( \sqrt{43} \), we will use the Pythagorean theorem, which states that for a right triangle with legs \( a \) and \( b \), and hypotenuse \( c \):
\[ a^2 + b^2 = c^2 \]
We'll check each option to see if one of the triangles can be modified to have \( \sqrt{43} \) as one of its leg measures.
Option A: \( 8, \sqrt{21} \)
Calculate \( 8^2 + (\sqrt{21})^2 \): \[ 8^2 = 64 \quad \text{and} \quad (\sqrt{21})^2 = 21 \] \[ 64 + 21 = 85 \] Now check if \( c^2 = 85 \): \[ c = \sqrt{85} \]
Option B: \( \sqrt{60}, \sqrt{19} \)
Calculate \( (\sqrt{60})^2 + (\sqrt{19})^2 \): \[ (\sqrt{60})^2 = 60 \quad \text{and} \quad (\sqrt{19})^2 = 19 \] \[ 60 + 19 = 79 \] Now check if \( c^2 = 79 \): \[ c = \sqrt{79} \]
Option C: \( 12, \sqrt{44} \)
Calculate \( 12^2 + (\sqrt{44})^2 \): \[ 12^2 = 144 \quad \text{and} \quad (\sqrt{44})^2 = 44 \] \[ 144 + 44 = 188 \] Now check if \( c^2 = 188 \): \[ c = \sqrt{188} \]
After checking all three options, we have calculated the sums of squares for each triangle but haven't found \( \sqrt{43} \) directly. However, since all sides are provided in a triangular format, we need to hypothesize how \( \sqrt{43} \) fits in the context of minimizing.
Among the options, it looks like:
- None of the options contain \( \sqrt{43} \) directly.
- However, it is useful to observe one triangle needs to validate if \( \sqrt{43} \) could account for either angle, confirming a possible similarity in segments.
Thus, by the analysis, we can say none outright can be chosen without additional values \( = 43 \).
If you have a loose angle on how to utilize \( \sqrt{43} \), please specify which angles check against those proposed.
According to the three options provided, none exactly matches \( \sqrt{43} \).