Question

drag the correct words into the blanks in the sentences.
alexander calder used the in his sculptures.
principles of design variety contrasting unity
check answer
he used of shapes to create interest.
principles of design variety contrasting unity
check answer

Explanation:

For the first sentence: Alexander Calder, a sculptor, used fundamental design concepts in his work. "principles of design" is the broad term fitting here as his sculptures employ design principles.
For the second sentence: To create interest, using different (varied) shapes makes sense. "variety" refers to diverse elements, so it fits "of shapes to create interest".

Answer:

First blank: principles of design
Second blank: variety