Answer:
woah
Step-by-step explanation:
OWO UWU LOL AOAJJAJAJW
Answer:
450
Step-by-step explanation:
If the perimeter is 90 inches then each side must equal 30 inches. To find the area of a triangle you mulptiply the base by the height and divide by 2. The base is 30 and the height is 30. 30*30=900. 900/2=450.
October meeting is 3 times more than the number of people at September meeting.
Sept meeting = 21 ÷ 3 = 7
7 people were at the September meeting.