Distance of the point (3,4,5) from Z-axis is - Vidyadip

MCQ

Distance of the point (3,4,5) from Z-axis is

✓
$5$
B
$\sqrt{41}$
C
$\sqrt{34}$
D
$\sqrt{50}$

✓

Answer

Correct option: A.

$5$

(A)
Distance from Z-axis $=\sqrt{x^2+y^2}=5$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Line and Plane→Line and Plane — all question types→Maths STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

The acute angle between two lines whose direction ratios are given by $l+ m - n =0$ and $l^2+ m ^2- n ^2=0$ is

The shortest distance between the lines $\bar{r}=(\hat{i}+2 \hat{j}+\hat{k})+\lambda(\hat{i}-\hat{j}-\hat{k})$ and

$\bar{r}=(2 \hat{i}-\hat{j}-\hat{k})+\mu(2 \hat{i}+\hat{j}+2 \hat{k})$ is

Question is modified.

The shortest distance between the lines $\bar{r}=(\hat{i}+2 \hat{j}+\hat{k})+\lambda(\hat{i}-\hat{j}+\hat{k})$ and

$\bar{r}=(2 \hat{i}-\hat{j}-\hat{k})+\mu(2 \hat{i}+\hat{j}+2 \hat{k})$ is

$\int_0^{\pi / 4} \tan ^2 x d x=$

The direction cosines of any normal to the XY-plane are

The coordinates of the foot of perpendicular drawn from the origin to the plane 2x + y − 2z = 18 are ______

$\int_{\frac{-3 \pi}{2}}^{\frac{-\pi}{2}}\left[(x+\pi)^3+\cos ^2(x+3 \pi)\right] d x$ is equal to

$\sin ^2\left(\sin ^{-1} \frac{1}{2}\right)+\tan ^2\left(\sec ^{-1} 2\right)+\cot ^2\left(\operatorname{cosec}^{-1} 4\right)=$

If the angle $\theta$ is acute, then the acute angle between $x^2(\cos \theta-\sin \theta)+2 x y \cos \theta+y^2(\cos \theta+\sin \theta)=0$ is

The straight lines represented by the equation $9 x^2-12 x y+4 y^2=0$ are

A bag containe $5$ black, $4$ white balls and $3$ red balls. if a ball is selected randomwise, the probability that it is black or red ball is,