Answer:
Step-by-step explanation:
Pls help me with my question roo
Answer: im not very sure and im sorry but the answer is either D or C
Step-by-step explanation:
Answer: 70
90+20=110
180-110=70
I hope this is good enough:
Answer:
a. 7.2
b. 6
Step-by-step explanation:
Since the side lengths of similar polygons are proportional to each other, therefore:

Thus, let's find b using:

Cross multiply


Divide both sides by 15
b = 6
Let's find a using:

Cross multiply
9*12 = 15*a
108 = 15a
Divide both sides by 15
a = 7.2