13 का वर्ग ज्ञात करें

Step 1: Identify the number and the operation. The image shows the text "13 का वर्ग ज्ञात करें". This translates to "Find the square of 13".

Step 2: Calculate the square of 13. To find the square of a number, multiply the number by itself. $13^2 = 13 \times 13$ $13 \times 13 = 169$

The square of 13 is $\boxed{169}$.