A wall in Maria's bedroom is in the shape of a trapezoid. The wall can be divided into a rectangle and a triangle.

Using the [tex]$45^{\circ}-45^{\circ}-90^{\circ}$[/tex] triangle theorem, find the value of [tex]$h$[/tex], the height of the wall.

A. [tex]$6.5 \text{ ft}$[/tex]
B. [tex]$6.5 \sqrt{2} \text{ ft}$[/tex]
C. [tex]$13 \text{ ft}$[/tex]
D. [tex]$13 \sqrt{2} \text{ ft}$[/tex]



Answer :

To solve for the height [tex]\( h \)[/tex] in the given problem involving a [tex]\( 45^\circ-45^\circ-90^\circ \)[/tex] triangle:

1. Understanding the Properties of a [tex]\( 45^\circ-45^\circ-90^\circ \)[/tex] Triangle:
- In a [tex]\( 45^\circ-45^\circ-90^\circ \)[/tex] triangle, the two legs are congruent, meaning they have the same length.
- The hypotenuse is [tex]\(\sqrt{2}\)[/tex] times the length of each leg.

2. Given Information:
- One leg of the triangle measures 6.5 feet.

3. Application of the Theorem:
- Since the smaller legs are congruent and each measures 6.5 feet,

4. Calculate the Hypotenuse [tex]\( h \)[/tex]:
- The hypotenuse (height of the wall in this context) is calculated as:
[tex]\[ h = 6.5 \times \sqrt{2} \][/tex]

After calculating this multiplication, we find:

[tex]\[ h \approx 9.19238815542512 \, \text{feet} \][/tex]

So the height of the wall, represented by the hypotenuse in this specific [tex]\( 45^\circ-45^\circ-90^\circ \)[/tex] triangle, is approximately [tex]\( 9.19238815542512 \)[/tex] feet. Therefore, none of the provided options ([tex]\( 6.5 \)[/tex] ft, [tex]\( 6.5\sqrt{2} \)[/tex] ft, [tex]\( 13 \)[/tex] ft, [tex]\( 13\sqrt{2} \)[/tex] ft) exactly match this height, but you may refer to the idea that [tex]\( 6.5 \sqrt{2} \)[/tex] ft is the closest representation of the calculation involved.