Describe a real world situation where you might use the Pythagorean Theorem. Help due today :))

When carpenters want to construct a guaranteed right angle, they can make a triangle with sides 3, 4, and 5 (units). By the Pythagorean Theorem, a triangle made with these side lengths is always a right triangle, because
3^2
+
4^2
=
5^2

Explanation: hope this helps

21 cm

Step-by-step explanation: Given

Circumference of a circle with radius (r)-radius (r)=111 cm

(2πr−r)=111

r(2π−1)=111

r(44/7−1)=111

r[(44/7−7)/7]=111

​∴r=111×7/37=3×7=21cm

∴ radius is 21 cm.

Hope this helps!! :)