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
Lubov Fominskaja [6]
3 years ago
15

The sides of a triangle are in the ratio 2:3:4. The shortest side has length 5cm. Find the perimeter

Mathematics
2 answers:
ELEN [110]3 years ago
7 0
The sides are in ratio 2:3:4

So this means
shortest side = 2x
medium side = 3x
longest side = 4x
for some number x

The shortest side is given to be 5 cm, meaning that 
2x = 5
x = 5/2 <--- divide both sides by 2
x = 2.5

Since x = 2.5, we can now say...
shortest side = 2*x = 2*2.5 = 5
medium side = 3*x = 3*2.5 = 7.5
longest side = 4*x = 4*2.5 = 10

The three sides of the triangle are: 5, 7.5, 10
They add to 5+7.5+10 = 22.5

The perimeter of this triangle is 22.5 centimeters
valkas [14]3 years ago
3 0
The triangle lengths are 5, 7.5, and 10. The perimeter is 22.5 cm
You might be interested in
A traveler covered 4/5 of his journey with bicycle and the rest of the distance on foot. If the whole journey was 160 km, how mu
Juliette [100K]

Answer: 32 kilometers

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
at is another way to write the expression ​ p⋅(10−2) ​ ? (10⋅2)−p 10⋅2−p (10⋅2)⋅p (p⋅10)−(p⋅2)
Ostrovityanka [42]

Answer:

(p ⋅ 10) − (p ⋅ 2)

Step-by-step explanation:

Try to substitute "p" with any number.

Let's say p = 2

So

p ⋅ (10 − 2)

2 ⋅ (10 − 2)

2 ⋅ (8)

= 16

Now for the other equations

(p ⋅ 10) − (p ⋅ 2)

(2 ⋅ 10) − (2 ⋅ 2)

(20) - (4)

= 16

(10 ⋅ 2) − p

(10 ⋅ 2) − 2

(20 ) − 2

= 18

10 ⋅ 2 − p

10 ⋅ 2 − 2

20 - 2

= 18

(10 ⋅ 2) ⋅ p

(10 ⋅ 2) ⋅ 2

(20) ⋅ 2

= 40

Only (p ⋅ 10) − (p ⋅ 2) has the same result as p ⋅ (10 − 2).

Cheers

7 0
3 years ago
What is the simplified form of the expression square root 1 over 121???
shepuryov [24]
√(1/121) = √1 / √121 = 1 / 11 = <em>11⁻¹</em>
5 0
3 years ago
Read 2 more answers
Plz help. Which problem is a linear equation?
Romashka [77]

Answer:

I think the answer should be A

7 0
3 years ago
Sinx =căn 2/3<br> sinx=5/4<br> sinx =1<br> sin3x=can3/2<br> sin(x-60)=-1/2<br> sin3x=1/2
mel-nik [20]

Answer:

Correct option is

B

0

D

−1

sinx+sin2x+sin3x

=sin(2x−x)+sin2x+sin(2x+x)

=2sin2xcosx+sin2x [ by using sin(A+B)=sinAcosB+sinBcosA and sin(A−B)=sinAcosB−sinBcosA ]

=sin2x(2cosx+1)........(i)

cosx+cos2x+cos3x

=cos(2x−x)+cos2x+cos(2x+x)

=2cos2xcosx+cos2x [By using cos(a−b)=cosa⋅cosb+sina⋅sinb and cos(a+b)=cosa⋅cosb−sina⋅sinb]

=cos2x(2cosx+1).....(ii)

∴(sinx+sin2x+sin3x)

2

+(cosx+cos2x+cos3x)

2

=1

sin

2

2x(2cosx+1)

2

+cos

2

2x(2cosx+1)

2

=1.......[From(i)(ii)]

⇒(2cosx+1)

2

=1

⇒2cosx+1=±1

∴cosx=0or−1

6 0
3 years ago
Other questions:
  • Can you help with this please?<br><br><img src="https://tex.z-dn.net/?f=2n%20%5Ctimes%20n%20%3D%2012%20%20%2B%20n" id="TexFormul
    9·1 answer
  • Can y’all help me with this please
    15·1 answer
  • Point X is located at (2,-6), and point Z is located at (0,5). Find the y value for point Y that is located 1/5 the distance fro
    14·1 answer
  • Precalc Question 15 points multiple choice
    11·1 answer
  • The list below shows the prices of T-shirts at a clothing store,
    6·1 answer
  • How many centimeters are in 300 meters?
    12·2 answers
  • Help! I will Mark Brainliest!
    10·1 answer
  • Two families went to the event. The first family bought two children's tickets and one adult ticket and paid a total of 8.2 euro
    7·1 answer
  • Tomas rides his bike at a steady rate of 4 miles every 6 minutes
    15·1 answer
  • How do I Solve this equation
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!