21. A triangle with base length of 18 cm has an area of 99 cm? What is the height of the triangle?​

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Describe the relationship between the angles of similar triangles and the sides of similar triangles

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?