Construct the right-angled , where , and .
Let's draw a rough diagram to get an idea about,
Let's construct, using the information in the question -
Step 1: Draw the line segment, using the ruler -
Step 2: Draw a ray, from point to making an angle of with line segment -
Step 3: Take an arc of radius on compass and draw an arc from point , such that it bisect the ray -
Step 4: The bisected point is , join to get the required right-angled triangle -
Thus, obtained is our required right-angled triangle.