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Mathematics 15 Online
OpenStudy (anonymous):

The figure shows a triangular piece of cloth.

OpenStudy (anonymous):

OpenStudy (anonymous):

What is the length of the portion BC of the cloth?

OpenStudy (anonymous):

Select one: a. 7 cos 33° b. sin33 degrees/7 c. 7 sin 33° d. cos33degrees/7

OpenStudy (anonymous):

@RadEn @campbell_st

OpenStudy (anonymous):

i think its A

OpenStudy (anonymous):

what about you

OpenStudy (raden):

sin(33) = BC/AC, so sin(33) = BC/7 solve for BC (and the calculator)

OpenStudy (anonymous):

so it has to be B or C right

OpenStudy (raden):

sin(33) = BC/7 just cross product, get BC = 7 sin33

OpenStudy (anonymous):

\[7 \sin (33 {}^{\circ})=3.81 \text{ inches} \]

OpenStudy (anonymous):

so the answer is C

OpenStudy (raden):

yes

OpenStudy (anonymous):

thank you soo much i have somemore

OpenStudy (raden):

welcm

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