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 126/3 simplafiyed
spayn [35]

Answer:

42

Step-by-step explanation:

42 is the answer

5 0
3 years ago
Read 2 more answers
What is the value of the expression (2 x 5)^3
Tom [10]
Deal with the brackets first
(2x5) = 10
Then 10 cubed = 1000

Hope this helps
3 0
3 years ago
Find the shaded region.
pashok25 [27]

Answer:

Step-by-step explanation:

let the side of outer square=2x

then x²+x²=(20√2)²

2x²=800

x²=400

x=√400=20 in

2x=2×20=40 in

area of outer square=40²=1600 in²

area of inner square=(20√2)²=800 in²

area of shaded  region A=1600-800=800 in²

8 0
3 years ago
The chess club ordered 40 pizzas to be divided equally among 120 participants. how much pizza will each person get
kherson [118]
So before i give u the answer i will explain
step 1- Underline key info( 40PIZZA and 120 PEOPLE)
step 2- do 140\40 which then u will get 3( we do this cause we wanna find out how many times this number can go into 120)
step 3- ur answer is 3 pizza per person
7 0
3 years ago
(3 x 10-8exopet -8<br> )(3 x 10exponet9)
valina [46]

Answer:

=66.501505not9x21−1310.355601no2pt10x12−177.337346not9x11

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Only do question 5<br><br> 50 points<br><br> Topic: Percentage
    12·2 answers
  • the tank is 600 cubic meters. the height of tank is 6 meters. the base of the tank is square. what is the area of the base?
    14·1 answer
  • △ABC is similar to △XYZ by the AA Similarity Postulate ​ . The measure of ∠A is 44º and the measure of ∠C is 31º.
    8·1 answer
  • Last month The Car Shop sold 36 white cars, 24 green cars, 4 black cars and 8 red cars. whisch statement is true?
    12·2 answers
  • one winter day the temperature ranged from a high of 20 f to a low of -25 f. by how many degrees did the temperature change?
    15·1 answer
  • Why are the triangles congruent? (Need ASAP 15points)
    14·2 answers
  • I LOVE SINJIN VAN CLEEF&lt;33
    9·2 answers
  • Please help! I need help with this question.
    6·1 answer
  • If y = x^3 + x<br> please help! :)
    14·1 answer
  • If the Benton Widget Co. can produce 2,500 widgets in 5
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!