A 20 cm drinking straw sits diagonally in a glass of radius 3 cm and height 10 cm. what length of straw in the glass?

Question

asked Sep 1, 2018 71.2k views

1 Answer

Emilse · Answer 1 · 2018-09-05T20:06:41+0000

This is a Pythagorean Theorem problem. We don't need to know how long the whole straw is.

3^2 + 10^2 = x^2
9 + 100 = x^2
109 = x^2
x = sqrt 109