PUT and SUT added up make 180 degrees (supplementary)
Answer:

Step-by-step explanation:
⇒ 
⇒ 
⇒ 
Answer:
B
Step-by-step explanation:
not sure tho
Answer:
Arithmetic.
Step-by-step explanation:
Geometric sequences have common ratios. Arithmetic sequences have common differences.
Answer:
a=7
Step-by-step explanation:
The image is rendered and attached below.
Triangle WXY is an Isosceles right triangle, since WX=XY.
First, we determine the length of WY using Pythagoras Theorem.

Since triangle WXY is Isosceles, 

Therefore:
Triangle WYZ is a right triangle with WZ as the hypothenuse.
Applying Pythagoras Theorem
