Hello,
ABCD is a diamond.
Let's D' the intersection of the circle and DC.
m∠BCD'=2*m∠BDC=2*45=90°
m∠BCD=90°
The diagonals of ABCD are perpendicular==>ABCD is a diamond and AB=BC=CD=DA=2
Answer:
b=d+f+a^2
b/D+f=a^2
Step-by-step explanation:
Answer:c
Step-by-step explanation:
Let's find the required ratios first: to get to the relative percentages, we'll simply have to multiply by 100.
Since there are 16 girls, 10 boys and 9 adults, there are

people in total.
So, the ratio of girls is

The ratio of boys is

The ratio of adults is

If you want to know... it's 24