Question

please answer this!!!!..... pls fast​

Answer 1

Answer:

33.333333......

Step-by-step explanation:

say that (3x+10} =180-90 because the angle of  a straight line is 180

3x-10=90

3x=100

x=100/3

33.333....

Answer 2

Answer:

$\bf \fbox \green {The value of 3x is 80⁰}$

$\Huge \mathfrak { Hola \: Selenator }$

Step-by-step explanation:

Look at the above attached figure.

We conclude that AB is a straight line & CD is also a straight line.

And we know that the straight line is of 180⁰.

In line AB it is already given that

$\angle COB = 90⁰$

Therefore , angle AOC = 90⁰

If we carefully look at the diagram

we conclude that DOB and AOC are vertically opposite angles.

So ,

$\angle \: dob \: = \angle \: aoc \\ \\ 3x + 10 = {90}^{0} \\ \\ 3x = {80}^{0}$

$\bf \fbox \red {Hence the value of 3x is 80⁰}$