Construct a 90^ angle.

Here are the solutions for the remaining questions: 2a. Construct an acute angle of 45^ and bisect it. Step 1: Construct a 90^ angle. • Draw a line segment OA. • At point O, construct a perpendicular line OB, such that BOA = 90^. This can be done by drawing an arc from O intersecting OA, then from those intersection points, drawing two more arcs to find the perpendicular. Step 2: Construct a 45^ angle. • With the compass at O, draw an arc that intersects OA at point P and OB at point Q. • With the compass at P and then at Q, draw two arcs that intersect each other at point R. • Draw a line from O through R. The angle ROA is 45^. Step 3: Bisect the 45^ angle. • With the compass at O, draw an arc that intersects OA at point S and OR at point T. • With the compass at S and then at T, draw two arcs that intersect each other at point U. • Draw a line from O through U. The line OU bisects ROA, creating two angles of 22.5^ each. 3a. Mention two (2) methods of seasoning timber. Step 1: State the first method. • Air seasoning: This method involves stacking timber in open sheds or under cover, allowing natural air circulation to slowly dry the wood. Step 2: State the second method. • Kiln seasoning: Timber is dried in a controlled environment (a kiln) where temperature, humidity, and airflow are regulated. This allows for faster and more precise drying. 3b. State two (2) problems that may occur if timber is not properly seasoned. Step 1: State the first problem. • Warping and twisting: Improper or uneven drying can cause the timber to deform, making it difficult or impossible to use for its intended purpose. Step 2: State the second problem. • Cracking and splitting: Rapid or uncontrolled drying can lead to internal stresses within the wood, resulting in cracks and splits that reduce its strength and aesthetic value. That's 2 down. 3 left today — send the next one.