Question

The area of triangle A B C is twelvesquare centimeters. Each of the dimensions of triangle D E F is 3 times the dimension of triangle A B C. What is the area of triangle D E F?

Answer 1

so this is ratio and proportion

Answer 2

AREA(ABC) = (base*height)/2 = 12
AREA (DEF) = (3base*3height)/2 = 3*12

Answer 3

36

Answer 4

is that correct?