Just find the area of each shape: Big triangle- 1/2 x 8 x 9 = 36 units2 Small triangle- 1/2 x 4 x 6 = 12 units2 Big rectangle: 15 x 4 = 60 units2 Small rectangle: 6 x 4 = 24 units2
Add them all up together: 36 + 12 + 60 + 24 = 132 units2
Trust me this is the answer. COM.MENT ME IF U HAVE ANY QUESTIONS (Pls say if im right)
A half hour is 30 minutes. So you would need to divide 30 by 5 and you get six. Multiple 6 degrees Fahrenheit by 6 and you get 36 degrees. The solution cooled 36 degrees in half an hour.
