252mmSquared
Step-by-step explanation:
28+28=56
74-56=18
18÷2=9
9×28=252
ABC is same as FDE
so AC = FE = 5ft
angle B = 28 deg
angle C = 90 deg
so A = 180 - B - C = 62
Answer:
54 miles per hour
Step-by-step explanation:
If you divide the number of miles (216) by the hours (4) you get 54.
Since the ratio is 3:4, and 12/4 is 3 than you do 3x3 and get 9 so the answer is 9:12 or 9 boys and 12 girls. To check your answer, you can do 3/4 (for 3:4) and that is 0.75. If you do that with 9:12 you also get 0.75.
Square numbers are numbers with an odd number of factors. For example, 1 and 4 are square numbers.
