Points S and T are the…

Maths Questions

Points S and T are the midpoints of the sides of triangle FGH. What is the length of side GF?

Answer

By applying the theorems of triangle similarity, we find that GF measures 16 cm (the fourth option). Here’s the breakdown: Since S and T are the midpoints of triangle FGH’s sides, line segment ST is parallel to side GF; thus, triangles FGH and TSH are similar, ensuring corresponding sides maintain proportionality. Therefore, we have GF/ST = FH/TH = GH/SH. Given that FT equals 6 cm (as T is the midpoint of FH), it follows that FH is 12 cm since FH = 2 TH = 2 FT = 2(6 cm). Point GS measures 4 cm, leading to SH also being 4 cm (as S is the midpoint of GH), leading to GH being 8 cm, since GH = 2 GS = 2 SH = 2(4 cm). The length of ST is confirmed as 8 cm. Inputting known values into the proportion: GF/(8 cm) = (12 cm)/(6 cm) = (8 cm)/(4 cm), we find GF/(8 cm) = 2. Thus, solving for GF results in GF = 16 cm after multiplying both sides by 8 cm.

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