We can use the Pythagorean Theorem (a^2+b^2=c^2) to find the side lengths.
15^2=12^2+x^2
225=144+x
81=x
Which gives us that x=9 (you have to remember to find the square root)
Perimeter is 2l+2w, so 2(12)+2(9) = 42
Perimeter = 42
As for the area, we just multiply 9 by 12 to get us 108
Area = 108
:)
Answer:
Step-by-step explanation:
The quotient of 16 and 8 is 
. Adding 24 to this value results in .
Answer:
Step-by-step explanation:
B
Answer:
65
Step-by-step explanation:
right angle triangle so:
a=??, b=72 and c=97
a^2+b^2=c^2
a=√c^2-b^2
a=√97^2-72^2 =65
You end with 210.85. add 75.50 and 55.25 together you get 130.75. 130.75-25.15-18.65 = 86.95. 210.85-86.95= 123.90 work backwards.
