In a right-angled triangle ABC, the hypotenuse is 5 cm, the legs are 4 cm and 3 cm. Calculate the radius r of the inscribed circle.

the formula for the radius of the inscribed circle is (a + b-c) / 2
a-leg
b-leg
c-hypotenuse
substitute the values and we get
r = (4 + 3-5) / 2 = 2/2 = 1 cm
answer: 1 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.