12 cm, use the pythagorean theorem: a^2+b^2=c^2
5^2+b^2=13^2
25+b^2=169
b^2=144
b=12
12 cm
Number 1.) - I think it is D.
Number 2.) B
Number 3.) A or B I am not sure.
Can I get marked as brainllest Please?
Answer:
x=8
Step-by-step explanation:
In this parallelogram, the opposite sides are equal
PN = LM
5x+7 = 9x-25
Subtract 5x from each side
5x-5x+7 = 9x-5x -25
7 = 4x-25
Add 25 to each side
7+25 = 4x-25+25
32 = 4x
Divide each side by 4
32/4 = 4x/4
8 =x
