1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kamila [148]
3 years ago
8

K12 help??? 3.12 Congruence and Rigid Motions

Mathematics
2 answers:
Kryger [21]3 years ago
7 0
Congruent because you can map the triangles using a reflection across the y-axis which is a rigid motion
VikaD [51]3 years ago
6 0

Answer: ΔPQR is congruent to ΔP'Q'R'  because We can map ΔPQR to ΔP'Q'R' using reflection across y-axis. which is a rigid motion.

Step-by-step explanation:

Given : The coordinates of ΔPQR are P(1,4) , Q(2,2)  and R(-2, 1).

The coordinates of  ΔP'Q'R' are P(-1,4) , Q(-2,2)  and R(2, 1).

Note that the sign of x-coordinate is changed but the magnitude of x and y coordinates remains unchanged.

It means we can ΔP'Q'R' is a mirror image of ΔPQR across y-axis (∵ y-values are exactly same.)

i.e. We can map ΔPQR to ΔP'Q'R' using reflection across y-axis.

Since reflection is a rigid motion and all rigid motions produces congruent images.

⇒ ΔPQR is congruent to  ΔP'Q'R'

You might be interested in
Which among the four choices gives the difference of (x/4x²) and (3/4x²)?​
Sergeeva-Olga [200]

Answer:

2

Step-by-step explanation:

the difference is that

6 0
3 years ago
PLEASE HEEELPPP 15 POINTS PLESSEE
sergeinik [125]
Answer:

200.96 yd^2

Step-by-step explanation:

Area of a circle = πr^2 where r = radius

radius = diameter/2

radius = 16/2

radius = 8

Area = π(8)^2

Area = π64

Area = 200.96 yd^2
6 0
3 years ago
Read 2 more answers
Solve for x. <br><br> 14+x&gt;18<br><br><br><br> Enter your answer, as an inequality, in the box.
Andrej [43]
X is greater than or equal to 5
7 0
3 years ago
I need help with a perimeter problem
adelina 88 [10]
What is the permiter problems first?? all you need to do to find perimeter is multiply the length by the width
6 0
3 years ago
Help for points quick pls
kotykmax [81]
$0.10 since you divide the price by the fluid ounce. (1.19/12=0.991...)
5 0
3 years ago
Other questions:
  • 40 has a quotient with a remainder of 15
    7·1 answer
  • The radius of the base of a cylinder is increasing at a rate of 777 millimeters per hour. The height of the cylinder is fixed at
    5·1 answer
  • What is absolute value of -4 5/19
    12·1 answer
  • A regular hexagon has an apothem of 14.7 inches and a perimeter of 101.8 inches. What is the area of the hexagon?
    10·2 answers
  • The linear inequalities that will limit the solution region in a linear programming problem are called the ___.
    11·1 answer
  • Marlin Davies buys a truck for $28,000. In three years, the truck depreciates 48% in value. How much is the truck worth in three
    6·2 answers
  • I need help on 7 and 8!!!!!Find the diameter of each circle. Use a calculator’s value of Pi. Round your answer to the nearest te
    6·1 answer
  • The equation of line m is 5x – 3y = 2.
    12·1 answer
  • If you do these 2 problems you get 100 points
    6·2 answers
  • For the data in the table, write an equation for the direct variation.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!