If the length of side a is 12 centimeters, m/_b 36, and m/_b 75, what is the length of side b round your response to two decimal places

Answer this question, only if you know the answer. 30 points and brainliest!

He concluded that a heavier object dropped from the same height as a lighter object will land

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?