An iris diaphragm is a set of overlapping metal plates that expand out to allow more light or fold in on each other to reduce the amount of light. true false

True or false matisse was afraid to risk using wild colors in his work

What is a principle of design that repeats elements to create good visual flow?

How did brunelleschi solve his problem with the dome of the florence cathedral? a. he created an outer support shell. b. he created many layers of support within the dome. c. he created external supports for the dome. d. all of the above