Question

Math 2 Of high school

Answer 1

Answer:

• B. BC = 18 so ∆ABC ～ ∆DEF by SAS

Step-by-step explanation:

$\bf \cfrac{AB}{DE} = \cfrac{BC}{EF}$

• $\bf \cfrac{15}{10} = \cfrac{BC}{12}$
• $\bf \cfrac{3}{2} = \cfrac{BC}{12}$
• $\bf BC = \cfrac{3}{2} \times 12$
• $\bf 3 \times 6$
• $\bf BC = 18$
• $\bf \angle B = \angle \: E$

So, ∆ABC ～ ∆DEF by SAS.

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