Question

The scale factor of ∆RST to ∆DEC is 3 : 13. What is the scale factor of ∆DEC to ∆RST? Select one: a. 39 : 1 b. 1 : 39 c. 13 : 3 d. 3 : 13

Answer 1

ΔDEC/ΔRST is 13/3 it is c

Explanation:

ΔRST/ΔDEC = 3/13 so the inverse is 13/3