stephanie9291
20.03.2021 •
Mathematics
Construire un triangle ABC rectangle en B tel que AB = 9 cm et BC = 6 cm.
Placer les points I et J milieux respectifs des côtés [AB] et [AC].
Construire le point K symétrique de I par rapport à J.
Montrer que le quadrilatère AICK est un parallelogramme.
En déduire la longueur CK.
Démontrer que les droites (IJ) et (BC) sont parallèles.
Démontrer que le quadrilatère BIKC est un parallélogramme, puis un rectangle
Solved
Show answers
More tips
- C Computers and Internet How to insert videos into LiveJournal?...
- C Computers and Internet How Much Does an iPhone Cost in America?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- H Health and Medicine Headache: A Comprehensive Guide to Treatment...
- C Computers and Internet How to Properly Order Clothing from International Online Stores...
- A Auto and Moto Mastering One-Movement Parking: All You Need to Know...
- D Dating, Love, Relationships How Long Can Love Last?...
- S Society and Politics Is It Fact or Fiction? Let s Talk About Anton Chekhov s Pseudonym...
- F Food and Cooking How to Find Your Zip Code?...
- S Style and Beauty How to choose the best mascara for your eyelashes...
Answers on questions: Mathematics
- M Mathematics 1. What is the probability of selecting a B on the first spinner and a Z on the second spinner?A. 1/16B. 1/12C. 1/6D. 1/4...
- M Mathematics The following is the number of oil changes for the last 7 days at the Jiffy Lube located at the corner of Elm Street and Pennsylvania Avenue. 41 15 39 54 31 15 33...
- M Mathematics A building company bids on two large projects. The CEO believes the chance of winning the 1st is 0.6, the chance of winning the 2nd is 0.5, and the chance of winning...
- M Mathematics A particle is moving along the parabola x2=4(y+3). As the particle passes through the point (4,1), the rate of change of its y-coordinate is 6 units per second. How fast,...
- M Mathematics The graph of y=|x| is reflected across the x-axis and then scaled vertically by a factor of 1/4...
- M Mathematics PLEASE HELP ME I LL MARK YOU BRAINLIEST IF YOU ANSWER THESE CORRECTLY Find the missing value...
- M Mathematics What is the equation of this line in slope intercept form?...
- M Mathematics If I || m and mZ8 = 109°, what is mZ5? nu m25 =D...
- M Mathematics Simplify 14,000,000,000)(1.2*10^3)...
- M Mathematics Rasheed is contemplating whether to buy a membership for a trampoline park, which is $50 a year. As a member, Rasheed receives a 15% discount on jump tickets. If the...
Ответ:
x1 + y5 = 40
x + y = 12
(I'm going to solve for x first, so multiply the bottom equation by negative 5)
x1 + y5=40
x-5+y-5= -60
(cross out the y and solve)
x-4 = -20
(divide)
x= 5
(place it in the equation you didn't use)
5 + y = 12
y = 7
he has 7 fives and 5 ones