__________, primarily used for covering roofs of structures, acquire their strength from the fact that the sides of a triangle, once joined, cannot be forced out of shape.
a. Pendentives
b. Shingles
c. Balloon framings
d. Trusses
e. Clapboards
Question 2
The imaginative combination of photographic images in collages, an approach used by artists like Hannah Hch, is called
a. documentary photography
b. straight photography
c. rayographs
d. photomontage
e. negatives