1 Answer

Binh Nguyen · Answer 1 · 2023-10-21T11:31:11+0000

Observe that the triangle has a square angle.

So the triangle is a right angled triangle, and hence the Pythagoras Theorem is applicable.

$\text{Base}^2+Height^2=Hypotenuse^2$

Substitute the values,

$12^2+Height^2=15^2\Rightarrow Height^2=225+144\Rightarrow Height=9$

Thus, the height i.e. length of the wall support is 9 inches.

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