The sides of the rectangle are 5 and 12 cm. Will find its diagonals.
August 29, 2021
We are given a rectangle with sides 5 cm and 12 cm. Let its length be 12 cm and width 5 cm. We need to find its diagonal. We can draw a diagonal and consider one of the resulting triangles. Since all the corners of the rectangle are straight, then the triangle will turn out to be straight. We know two of his legs, which means he can find the hypotenuse according to the rule: the square of the hypotenuse is equal to the sum of the squares of the legs.
Let’s find the sum of the squares of the legs:
5 ^ 2 + 12 ^ 2 = 25 + 144 = 169.
So our hypotenuse will be equal to the root of 169. And the root of 169 is 13.
Answer: 13 cm.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.