Question

The picture below shows a right triangle shaped charging stand for a gaming system.

Which expression shows the length, BC, of the base of the stand?

9 by sin 70

9 by cot 70

9 cot 70°

9 cos 70°

Answer 1

@mayankdevnani last one i promise, please!!!

Answer 2

use cos70

Answer 3

\[\huge \bf \cos70^\circ=\frac{adjacent~side}{hypotenuse}\]

Answer 4

can you solve it? @brianjr227

Answer 5

\[\large \bf adjacent~side=BC~~and~~hypotenuse=9 ~inches\]

Answer 6

can you solve ? @brianjr227

Answer 7

how to i find adjacent though

Answer 8

\[\huge \bf \cos70^\circ=\frac{adjacent~side=BC}{hypotenuse=9}\]
\[\huge \bf BC=9 \times \cos70^\circ\]

Answer 9

so what is the answer? @brianjr227

Answer 10

9cos70

Answer 11

??

Answer 12

@mayankdevnani

Answer 13

@mayankdevnani Actually I think BC = 9/tan 70

Answer 14

the answer is the last choice though

Answer 15

@brianjr227 its 9 by cot 70

Answer 16

you sure

Answer 17

cool thanks! can you check this problem, i already did it and got answer of 2 meters @Isaiah.Feynman

Answer 18

Jim is designing a seesaw for a children’s park. The seesaw should make an angle of 30° with the ground and the maximum height to which it should rise is 1 meter, as shown below.
What is the maximum length of the seesaw?

1.4 meters

2 meters

0.5 meters

1 meter

Answer 19

Yes