Using pythagorean theorem, calculate the length of the unknown leg of a right triangle if the hypotenuse = 12 cm and the known leg = 6 cm?

6√3, 10.39230484 ...

Step-by-step explanation:

In the theorem, a^2+b^2=c^2, and c equals the longest side (in this case, hypotenuse). The known leg can be a. So now, we can substitute and our equation is 36+b^2=144. Subtract 36 from both sides, & b^2=108. Depending on what form the problem wants you to answer with, the answer could be 6√3, 10.39230484 ..., or the decimal simplified.

where is the image?

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk