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
:)
As -52 and 7 have no common factors, -52/7 is a completely simplified improper fraction. If it were converted into a mixed number, it would be -8 4/7.
Answer:
22
Step-by-step explanation:
double negative is a plus sign
13--9=22
Answer:
x = 8
Step-by-step explanation:
The triangle is isosceles with legs congruent, both x
Using Pythagoras identity in the right triangle
x² + x² = 16²
2x² = 256 ( divide both sides by 2 )
x² = 128 ( take the square root of both sides )
x = 
= 
= 
× = 8
Answer:
the answer is x=25 hope this helps
