Atree casts a shadow 10 ft long. a boy standing next to the tree casts a shadow 2.5 ft long. the triangle shown for the tree and its shadow is similar to the triangle shown for the boy and his shadow. if the boy is 5 ft tall, how tall is the tree?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?

In the diagram of circle o, what is the measure of zabc?