Hey I need help, How can I answer these type of question, I need help because these type of questions are on my exam next week, how can I solve this?????

TOplC Aristarthus of Samos [310 - 230 B.C.l was a famous Greek scientist musician. astronomer. and geometer. He observed that the angle between the sun and moon can be measured directly. He estimated the distance to the sun by observing that when the moon is exactly half full, the triangle formed by the sun. the moon. and the earth has a right angle at the moon. His method was similar to the one described in the following exercise. Aristarchus was the rst to advance the theory that the earth and the planets move around the sun, and idea that did not gain full acceptance until after the time If Copernicus, 1800 years later. For this reason he is often called the \"Copernicus of antiquity." 0 Distance to the Sun: When the moon is exactly half full. the earth, moon, and sun form a rightangle. At that time the angle formed by the sun, earth, and moon is measured to be 89.BS. If the distance from the earth to the moon is 240,000 miles, estimate the distance from the earth to the sun. Make sure you show your work step by step