sheilafatla sheilafatla

07-06-2021
Mathematics

contestada

Find C.
Round to the nearest tenth.
20 ft)
22 ft
B
18 ft
А

Find C Round to the nearest tenth 20 ft 22 ft B 18 ft А class=

Respuesta :

colinspurdle colinspurdle

07-06-2021

50.5 degrees

Use the cosine rule for angles

cos C = (20^2 + 22^2 - 18^2)/(2 x 20 x 22) = 0.6363...
C = 50.5 degrees

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