Answer:

Step-by-step explanation:
As per the problem, the given triangle is a right triangle. This is signified by the box around one of its angles, this box states that the angle it is surrounding is a right angle.
Since it is a right triangle, one can use the Pythagorean theorem to solve this problem. The Pythagorean theorem states that; (
), where (
) and (
) are the legs of the right triangle, or the sides adjacent to the right angle. (
) is the hypotenuse or the side opposite the right angle.
Substitute in the given values and solve, note that (
) represents the unknown leg (side).

Inverse operations,

Another word that has horizontal line symmetry is "book" and it is possible to form words with vertical line symmetry.
<h3>What is horizontal line symmetry in letters?</h3>
This implies that by dividing the letter in half using a horizontal line both sides would be the same. Lettters with horizontal line symmetry include:
<h3>What are some words with these symmetry?</h3>
<h3>Are words with vertical line symmetry possible?</h3>
Yes, they are because there are many letters that have this symmetry such as V, T, A, O, M, I, H. For example you can create the words:
Learn more about letters in: brainly.com/question/10361926
Answer : The two dimensions are the same in the triangles as they were in the rectangle.