Question

If QR = 9 and ST = 13 calculate LM.

Answer 1

`\boxed{\sf LM = 11}`

Explanation:

According to trapezoid mid-segment theorem:

`LM = (QR+ST)/(2)\\ Given \ that\ QR = 9, ST = 13`

`\sf LM = (9+13)/(2)`

LM = 22/2

LM = 11