Reddy

This page lists questions and answers that were posted by visitors named Reddy.

Questions

The following questions were asked by visitors named Reddy.

When leaned against a vertical structure, a straight ladder can be used safely if its top is no more than 4 above the base of the structure for every foot that the bottom of the ladder is away from the base. How high can a 22-foot ladder safely reach up a...

Answers

The following answers were posted by visitors named Reddy.

Cos A= 4(1-(15/17)) cos A= 4(12/17) Cos A= 48/17

Length of ladder=AC=15m Height of window from ground in first case AB=9m ABC is right angled triangle Ac^2=AB^2+BC^2 BC=12m In second case Let CE be length of ladder=15m Height of window from ground=DE=12m Triangle CDE is a right angled triangle CE^2=DE^2...