Question

You decide that the all-white rectangular wall in your living room needs some color. You plan to paint a diagonal stripe to break up the white paint. If the wall measures 9 feet tall by 12 feet wide, what length of diagonal stripe will you paint?

Answer 1

15 feet

Explanation:
So, to start we have to find the area of the wall.
9(12)=108
Now, we need to find half of the walls area
108/2=54

We have our length and height, but we need to find the hypotenuse using Pythagoreans theorem.
9 is our A and 12 is our B
a^2+b^2=c^2
81+144=c^2
c^2=225
The square root of 225 is 15.
C=15

Therefore, the stripe will be 15 feet.

Answer 2

15 ft

Explanation:

Use the Pythagorean theorem.

9² + 12² = c²

c² = 225

c = √225 = 15

Answer: 15 ft