2 years ago

I can’t figure this out I need the answer

Mathematics

1 answer:

fredd [130]2 years ago

7 0

Answer:

Area 2 = 72 cm²
CD = 7 cm

Step-by-step explanation:

For similar figures, side lengths (and any other linear measure) are proportional. Areas are proportional to the square of the scale factor for side lengths.

Perimeter 1/Perimeter 2 = CD/EF

21/18 = CD/6

CD = 6(21/18)

CD = 7 . . . cm

Area 2/Area 1 = (Perimeter 2/Perimeter 1)²

Area 2/98 = (18/21)²

Area 2 = 98(6/7)²

Area 2 = 72 . . . cm²

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