#13: b
#14: c
#16: c
It is very easy, have a nice day :)
Answer:
b) d=rt
Step-by-step explanation:
Answer: B. SAS or/and E. HL
Step-by-step explanation:
The two triangles both have a right angle of 90 degrees and two sides that are congruent so, SAS (side-angle-side). It can also be by HL since they both have a hypotenuse (the 2 lines) and one leg (the 1 line) that are congruent to each other.
If you divide 21 by 7 you get 3 so you divide 27 by 3 to get 9 so the ratio 21 to 27 is equivalent to the ratio of 7 to 9
A. 29 because of the A^2+B^2=C^2
B. 69 because you add up their lengths for the total length
C. Radius? (im not sure on that one)
D. It's a parallelogram (rectangle or square) because side AD is equal to side BC and side AB is equal to side DC