liyah2459

18.10.2021 •

Mathematics

Here are two three-dimensional figures. Tell whether each of the following statements describes Figure A, Figure B, both, or neither.

(Use upper case for A and B, and lower case for both and neither.)

Here are two three-dimensional figures.

Tell whether each of the following statements describes F

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Ответ:

truelove9288

15.03.2023

Mathematics

The ratio is $\frac{CL}{AC}=\frac{2BC}{3AB}$

Step-by-step explanation:

we know that

In the right triangle ABC

$cos(30\°)=AC/AB$

$AC=cos(30\°)(AB)$

we know that

$cos(30\°)=\frac{\sqrt{3}}{2}$

substitute

$AC=\frac{\sqrt{3}}{2}(AB)$

In the right triangle LBC

$tan(30\°)=CL/BC$

$CL=tan(30\°)(BC)$

we know that

$tan(30\°)=\frac{\sqrt{3}}{3}$

substitute

$CL=\frac{\sqrt{3}}{3}(BC)$

see the attached figure to better understand the problem

Find the ratio CL: AC

we have

$CL=\frac{\sqrt{3}}{3}(BC)$

$AC=\frac{\sqrt{3}}{2}(AB)$

$\frac{CL}{AC}=\frac{\frac{\sqrt{3}}{3}(BC)}{\frac{\sqrt{3}}{2}(AB)}=\frac{2BC}{3AB}$

In the right △abc m∠c=90°, bl is an angle bisector of ∠abc. what is the ratio cl: ac, if m∠bac=30°?

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Here are two three-dimensional figures. Tell whether each of the following statements describes Figure A, Figure B, both, or neither. (Use upper case for A and B, and lower case for both and neither.)

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Here are two three-dimensional figures. Tell whether each of the following statements describes Figure A, Figure B, both, or neither.

(Use upper case for A and B, and lower case for both and neither.)