Question

Anja is creating a triangle using three straws. The two shorter straws have lengths of 20 cm and 21 cm. How long, in centimeters, should the third straw be for Anja to create a right triangle?

Answer 1

solve
\[20^2+21^2=h^2\] for \(h\)

Answer 2

Hold up. Can't assume it's a right triangle

Answer 3

41?

Answer 4

it has to be less than 41. Any side of a triangle must be less than the sum of the other two sides

Answer 5

So I think between 21 and 41