Problem 21: (first taught in L65)
The longest side of a triangle is 3 greater than
the longest side of a similar triangle. If the
ratio of similitude is 5:4, find the lengths of
the longest side of each triangle.

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Which of the following is the shape of a cross section of the figure shown below