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3 years ago

The figures shown are similar. What is the scale factor? Two similar pentagons, one pentagon with base 9 and one pentagon with b

ase 12.
a. 1 1/3
b. 2/3
c. 1 1/4
d. 3/4

Mathematics

2 answers:

Oksi-84 [34.3K]3 years ago

7 0

$9:12=\frac{9}{12}=\frac{9:3}{12:3}=\boxed{\frac{3}{4}}\leftarrow\boxed{d.}$

Dennis_Churaev [7]3 years ago

3 0

$\sf You \ have \ to \ set \ it \ as \ fraction \ then \ simplify. \\ \\ \frac{9}{12} \\ \\ GCF = 3 \\ \\ Reduce \ by \ dividing \ both \ denominator \ and \ numerator \ by \ 3. \\ \\ \dfrac{9 \div 3}{12 \div 3} \\ \\ = \frac{3}{4}$

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