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
balandron [24]
2 years ago
10

What is the PERIMETER of triangle ABC ?

Mathematics
2 answers:
gizmo_the_mogwai [7]2 years ago
6 0
The length of AC is 8

The length of 1/2 of AC = 4 (set the "4" point as D)
DC = 4

DC = 4,DB = 3, CB = x

Use the pythagoream theorem.

4² + 3² = x²
16 + 9 = x²
25 = x²

root both sides to isolate the x
√25 = √x²
x = √25
x, or CB = 5

Add all the sides together. Remember, CB = 5, DC = 4, & DB = 3
5 + 4 + 3 = 12

12, or (A) is your answer

hope this helps
Galina-37 [17]2 years ago
5 0

Answer:  The correct option is (D) 18 units.

Step-by-step explanation:  We are given to find the perimeter of triangle ABC.

As shown in the attached figure below, triangle ABC is divided into two right-angled triangles ABD and ACD.

From the figure, we note that

AC = 8 units.

And the side lengths AB and BC are calculated using Pythagoras theorem of right-angled triangles as follows :

AB=\sqrt{AD^2+BD^2}=\sqrt{3^2+4^2}=\sqrt{25}=5~\textup{units},\\\\BC=\sqrt{CD^2+BD^2}=\sqrt{3^2+4^2}=\sqrt{25}=5~\textup{units}.

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

Therefore, the required PERIMETER of ΔABC is given by

P=AB+BC+AC=5+5+8=18~\textup{units}.

Thus, the perimeter of ΔABC is 18 units.

Option (D) is CORRECT.

You might be interested in
What is the value of 3/5+2/7
netineya [11]

Answer:

0.8 is your answer

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What makes a constant term different from a term with a variable?
Sunny_sXe [5.5K]
A constant is any number, anywhere on the number line.
A variable is an unknown, x y z n etc
8 0
3 years ago
Read 2 more answers
[x^2+2y]^3<br> expand it
777dan777 [17]

(a + b) {}^{3}  = a {}^{3}  + 3a {}^{2} b + 3ab {}^{2}  + b {}^{3}  \\  \\ x {}^{6}  + 6x {}^{4} y + 12x {}^{2} y {}^{2}  + 8y {}^{3}

8 0
3 years ago
Read 2 more answers
Six groups sell a 162 balloons at the carnival. There are 3 students in each group. If each student sells the same number of bal
____ [38]

Answer:each student will sell 9 balloons.

Step-by-step explanation:

The total number of balloons sold by the six groups at the carnival is 162. There are 3 students in each group. This means that the total number of students in the six groups would be 6 × 3 = 18 students.

If each student sells the same number of balloons, then it means that the number of balloons that each student sells will be

162/18 = 9

3 0
2 years ago
Which graph shows the solution to the inequality -3x-720?
inn [45]

Answer:

x>-9

Step-by-step explanation:

The given inequality is :

-3x - 7 < 20

We need to find the solution of the inequality using graph.

-3x - 7 < 20

Add 7 to both sides

-3x-7+7 < 20+7

-3x <27

x>-9

Hence, the attatched graph shows the solution of the given inequality.

7 0
3 years ago
Other questions:
  • list all of the ways that a square can be correctly classified ( or named ) and Explain why each of the different names is also
    11·1 answer
  • The length of the shorter side of a parallelogram is 29 cm. Perpendicular line segment, which goes through the point of intersec
    15·1 answer
  • A supermarket has determined that daily demand for milk containers has an approximate bell shaped distribution, with a mean of 5
    10·1 answer
  • 4% as a fraction in simplistic form
    13·1 answer
  • XANDER TRAVELED 8,568 MILES IN 17 DAYS. ON AVERAGE HOW MANY MILES PER DAY DOES HE TRAVEL
    9·1 answer
  • A leaky faucet wastes 3600 gallons of water per year how many quarts of water are wasted per month [1 gallon = 4 quarts]
    6·1 answer
  • Is (x-2) a factor of f(x) = (4x +13x +10)?
    11·1 answer
  • During a football game, Max had gained 15 yards and then gained 8 more yards. Later in
    11·2 answers
  • can someone help me out i dont know what the answer is an i suck at this ive already done it once and i dont know how to do this
    9·2 answers
  • Emergency!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!