sydneyash4477oxkon2 sydneyash4477oxkon2

25-10-2017
Mathematics

contestada

If b = 9 cm, c = 7 cm, and m∠A = 66°, what is the approximate area of ABC?
A) 28.78 cm2
B) 12.81 cm2
C) 14.62 cm2
D) 57.55 cm2

Thank you!

If b 9 cm c 7 cm and mA 66 what is the approximate area of ABC A 2878 cm2 B 1281 cm2 C 1462 cm2 D 5755 cm2Thank you class=

Respuesta :

merlynthewhizz merlynthewhizz

27-10-2017

Area of triangle ABC can be found using the formula ¹/₂ × b × c × sin (A)

Substitute b = 9, c = 7, and m∠A = 66° into the formula gives

Area = 9 × 7 × sin 66° = 57.55

ANSWER: D

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