Find the length x.

nagasenaz
2020-10-18
Answered

Find the length x.

You can still ask an expert for help

Alannej

Answered 2020-10-19
Author has **104** answers

Step 1

Solving by similarity of triangle

Step 2

So

x=2

asked 2021-05-17

Find the point on the line

asked 2021-08-06

John sections a circular garden with a 12-yard diameter into 8 equal sections. He wants to put a border around one section of the garden.

To the nearest tenth, what is the perimeter of one section of the garden?

4.7 yards

14.1 yards

16.7 yards

37.7 yards

To the nearest tenth, what is the perimeter of one section of the garden?

4.7 yards

14.1 yards

16.7 yards

37.7 yards

asked 2022-03-03

Find the similarity ratio of two circles with areas $75\pi c{m}^{2}\text{}\text{and}\text{}27\pi c{m}^{2}$ .

asked 2021-12-16

Find the area of the surface generaled by revolving the curve $x=\frac{{e}^{y}+{e}^{-y}}{2}$ in the interval $0\le y\le \mathrm{ln}3$ about the y-axis

asked 2022-07-18

What is the angle of b?

So first off, I know how to find the missing length of the leg of the triangle using the pythagorean theorem. ${6}^{2}+{b}^{2}={c}^{2}$.

$36+{b}^{2}=100$

$100-36=64$

$\sqrt{64}=8$

So angle angle A is going to be $\frac{\text{adjacent}}{\text{hypotenuse}}$.

$\mathrm{cos}(\text{angle})=\frac{\text{adjacent}}{\text{hypotenuse}}$

$\mathrm{cos}(\text{angle})=\frac{8}{10}$

${\mathrm{cos}}^{-1}(0.8)={36.86989765}^{\circ}$

Here is where I run into my problem. So assuming that B is going to be $\frac{\text{opposite}}{\text{hypotenuse}}$.

$\mathrm{sin}(\text{angle})=\frac{6}{10}$

${\mathrm{sin}}^{-1}(0.6)={36.86989765}^{\circ}$

However, when I use the law of cosines I get the same answer for angle A, but a different angle for B, which comes out as 53.13. It would be greatly appreciated if someone could help me figure out where my mistakes are.

So first off, I know how to find the missing length of the leg of the triangle using the pythagorean theorem. ${6}^{2}+{b}^{2}={c}^{2}$.

$36+{b}^{2}=100$

$100-36=64$

$\sqrt{64}=8$

So angle angle A is going to be $\frac{\text{adjacent}}{\text{hypotenuse}}$.

$\mathrm{cos}(\text{angle})=\frac{\text{adjacent}}{\text{hypotenuse}}$

$\mathrm{cos}(\text{angle})=\frac{8}{10}$

${\mathrm{cos}}^{-1}(0.8)={36.86989765}^{\circ}$

Here is where I run into my problem. So assuming that B is going to be $\frac{\text{opposite}}{\text{hypotenuse}}$.

$\mathrm{sin}(\text{angle})=\frac{6}{10}$

${\mathrm{sin}}^{-1}(0.6)={36.86989765}^{\circ}$

However, when I use the law of cosines I get the same answer for angle A, but a different angle for B, which comes out as 53.13. It would be greatly appreciated if someone could help me figure out where my mistakes are.

asked 2022-07-23

Calculate the volume of a regular pyramid of height h

Calculate the volume of a regular pyramid of height h, knowing that this pyramid is based on a convex polygon whose sum of inner angles is nπ and the ratio between the lateral surface and the base area is k.

Idea: Use the formula $\overline{){\displaystyle \frac{lwh}{3}}}$ for finding the volume. But at first you have to Bash the problem to find the width and length and then after getting their values you have to plug it into the formula to find the volume.

Calculate the volume of a regular pyramid of height h, knowing that this pyramid is based on a convex polygon whose sum of inner angles is nπ and the ratio between the lateral surface and the base area is k.

Idea: Use the formula $\overline{){\displaystyle \frac{lwh}{3}}}$ for finding the volume. But at first you have to Bash the problem to find the width and length and then after getting their values you have to plug it into the formula to find the volume.

asked 2020-12-28

What is geometry?