You have to plug in the given numbers and perform each operation. Let me know if you have questions. The answers are circled.
Answer:
Triangle RED ≈ Triangle BUL
By-
SAS Congruencey
Beacause-
RE = BU (S)
ang RDE = ang BLU (A)
RD = BL (S)
(All the info for the relationship is given in the diagram itself)
Thus it's SAS Congruencey
D
You figure out the absolute value by determining how far the number is from the point 0 on a number line.
The formula for the area of a circle is pi*r^2. 3.14*16^2 = 803.84 centimeters squared