Find the perimeter of triangle pqr. round your answer to the nearest tenth.

19.7 units
16 units
8 units
7.2 units

 The correct option is

(A) 19.7 units.

Step-by-step explanation:  We are given to find the perimeter of triangle PQR and round the answer to the nearest tenth.

From the figure, we note that the co-ordinates of the vertices of triangle PQR are P(-2, 1), Q(6, 1) and R(4, -3).

We know that the perimeter of a triangle is equal to the sum of the lengths of its three sides.

The lengths of the sides PQ, QR and PR can be calculated using distance formula as follows :

Therefore, the perimeter of triangle PQR is given by

Rounding to the nearest tenth, we get

p = 19.7 units.

Thus, the required perimeter of triangle PQR is 19.7 units.

Option (A) is CORRECT.

step-by-step explanation:

do you have a copy of the table?

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.