573589
12.03.2020 •
Mathematics
The length of the small leg of a 30 - 60 - 90 triangle is 5. what is the perimeter of the triangle?
A 5+15 Sqr3
B 15+5 Sqr3
C (5/2) +(15/2) Sqr3
D (15/2)+(5/2)Sqr3
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Ответ:
B. 15 + 5√3.
Step-by-step explanation:
The ratio of the sides in a 30-60-90 triangle is 1:√3:2.
So here the lengths of the sides are 5, 5√3 and 10.
Perimeter = 15 + 5√3.
Ответ: