Answer:
15
Step-by-step explanation:
30 subtract 15 = 15 and both the 10 and the other 10 are the same
Answer: B. perpendicular lines because they intersect at a right angle, making them perpendicular.
18sqrt(15)
This has to be at least 20 characters long so yeaaaa
Formula: A = pq/2
p = d1
q = d2
Substitute with the given values and solve.
A = 12*14/2
A = 168/2
A = 84
Therefore, the ansewr is 84in²
Best of Luck!
