pinkrosecutie pinkrosecutie

12-06-2020
Mathematics

contestada

Find all solutions for a triangle with A = 40°, B = 60°, and c = 20.
a. C = 80°; a = 15.3; b = 17.6
C = 80°; a = 13.1: b = 17.6
b. C = 70°; a = 13.1; b = 14.5
d. no solution

Respuesta :

barakaodoyo5 barakaodoyo5

17-06-2020

Answer:C

Step-by-step explanation:

180-(60+40)=80°

C=80°

20/sin80. =a/sin40

a=(20sin40)÷sin80

=13.1

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