What are good geometry math problems with answers?

Answer 1

Here are a few good geometry problems along with their answers:

1. Problem: A triangle has sides of lengths 7 cm, 24 cm, and 25 cm. Is it a right triangle?
   Answer: Yes, it is a right triangle, as (7^2 + 24^2 = 25^2) (49 + 576 = 625).

2. Problem: What is the area of a circle with a radius of 5 cm?
   Answer: The area is (A = \pi r^2 = \pi (5^2) = 25\pi \approx 78.54 , \text{cm}^2).

3. Problem: A rectangle has a length of 10 m and a width of 4 m. What is its perimeter?
   Answer: The perimeter (P = 2(length + width) = 2(10 + 4) = 28 , \text{m}).