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3 years ago

Find the perimeter of the polygon ABCD that has its vertices at a(2,-2) b(6,-2) c (6,6) d(2,6)

Mathematics

1 answer:

netineya [11]3 years ago

7 0

Answer:

Step-by-step explanation:

tracing the points given we get a rectangle

the perimeter of a rectangle = 2a+2b

a=length

b= width

in this case a= 8

b= 4

the perimeter of a rectangle = (2*8)+(2*4)

the perimeter of a rectangle = 16+8

the perimeter of a rectangle = 24

other answers: 6:18, 7:21, 8:24

8 0

2 years ago

Read 2 more answers

In triangle PQR, PR = 23mm, QR = 39mm, and m<R = 163 degrees. Find the area of the triangle to the nearest tenth.

Schach [20]

Answer: 131.1287 square mm (approx)

Step-by-step explanation:

The area of a triangle,

$A=\frac{1}{2} \times s_1\times s_2\times sin \theta$

Where $s_1$ and $s_2$ are adjacent sides and $\theta$ is the include angle of these sides,

Here PR and QR are adjacent sides and ∠R is the included angle of these sides,

Thus, we can write,

$s_1 = PR= 23\text{ mm}$ , $s_2=QR=39\text{ mm}$ and $\theta = 163^{\circ}$ ,

Thus, the area of the triangle PQR,

$A=\frac{1}{2} \times 23\times 39\times sin163^{\circ}$

$A=\frac{262.257419136}{2} = 131.128709568\approx 131.1287\text{ square mm}$

5 0

3 years ago

In a random and independent sample of 1000 students 80% of them were in favor of longer hours at the school library.

Semmy [17]

Answer:

20 MOE

Step-by-step explanation:

yes

5 0

3 years ago

PLS HELP QUESTION 8 ANSWER CHOICES ARE ON THE PICTURE :(((g

Alborosie

Answer:

11.125 meters i think it helps

Step-by-step explanation:

4 0

3 years ago