Answer:
a= 135
Step-by-step explanation:
18*15=135
Nothing. Say that you substitute 3 for 'z.' 6(3) is the same as (3)6. Simple.
Answer:
Shsudhhddyvbwefnvnv
Step-by-step explanation:
No, it isn't. Right triangle's side lengths follow the Pythagorean Theorum
a^2+b^2=c^2
if you plug it in..
12^2+14^2=19^2
if you solve it..
340=361
this isn't true so it isn't a right triangle
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
:)