What is the least common multiple of 8 10 and 12

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.