2 years ago

I need the value of A

1 answer:

3 0

Since it’s equilateral and all triangles add up to 180 degrees
3(3a-9)=180
3a-9=60
3a=51
a=17
So the value of A is 17 degrees

You might be interested in

A grid shows the positions of a subway stop and your house. The subway stop is located at (7, -6) and your house is located at (

Yuri [45]

So the distance between subway stop and house is 19 units

Step-by-step explanation:

The distance formula will be used to calculate the distance between home and subway.

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Here (x1,y1) are the coordinates of first point

and

(x2,y2) are the coordinates of second point

Given

(x1,y1) = (7, -6)

(x2,y2) = (-9,5)

Putting the values in the formula

$d=\sqrt{(-9-7)^2+(5-(-6))^2} \\=\sqrt{(-16)^2+(5+6)^2} \\=\sqrt{256+(11)^2}\\=\sqrt{256+121}\\=\sqrt{377}\\=19.41\ units$

Rounding off to nearest unit gives us 19.

So the distance between subway stop and house is 19 units

Keywords: Distance, distance formula

Learn more about distance at:

#LearnwithBrainly

6 0

2 years ago

798/6 plsssssss help

siniylev [52]

Answer:

133

Step-by-step explanation:

If you divide 798 by 6 you would get 133

Plz mark brainliest

3 0

2 years ago

Read 2 more answers

The Grand Canyon is approximately 29 kilometers long. Mariner Valley is a canyon on Mars that is approximately 212 kilometers lo

lesantik [10]

I’m not sure if I’m correct but I think it is 2^21

8 0

2 years ago

A pentagon has two exterior angles that measure (3x)°, two exterior angles that measure (2x+22)°, and an exterior angle that mea

DiKsa [7]

Answer:

2(3x)+2(2x+22)+x+41=360°

Step-by-step explanation:

Sum of exterior angles of any polygon is 360°.

So if we add up all five exterior angles of the pentagon, we have

7 0

3 years ago

Solve -mk - 90> 85 solve for m

Vikentia [17]

Let's solve for k. (-m)(k) - 90>85

step 1: add 90 to both sides.
-km -90+90> 85+90
- km > 175

step 2: divide both sides by -m
-km >175
-m -m

K< -175
m

7 0

2 years ago