In ∆PQR, S and T are the midpoints of the sides PQ and PR, respectively. The length of the side QR is 12 cm. If ST is parallel to QR, then find the length (in cm) of ST.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 6.
The midsegment of a triangle is parallel to the third side and its length is half the length of the third side.
ST = (1/2) × QR = (1/2) × 12 = 6 cm