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USPshnik [31]
3 years ago
14

If the sides of a triangle are in the ratio 3:4:5, prove that it isright-angled triangle​

Mathematics
2 answers:
Natali5045456 [20]3 years ago
8 0

Answer:

yes it's a right angle triangle

Step-by-step explanation:

Given the sides are in the ratio 3:4:5.

Let ABC be the given triangle.

Let the sides be 3x,4x and hypotenuse be 5x.

According to Pythagoras theorem,

AC

2

=BC

2

+AB

2

BC

2

+AB

2

=(3x)

2

+(4x)

2

=9x

2

+16x

2

=25x

2

AC

2

=(5x)

2

=25x

2

AC

2

=BC

2

+AB

2

Hence ABC is a right angled triangle

lyudmila [28]3 years ago
6 0

Answer:

hope this helps

Step-by-step explanation:

Let a , b , c are three sides of a triangle

a : b : c = 3 : 4 : 5

a = 3x ,

b = 4x ,

c = 5x

a² = 9x²

b² = 16x²,

c² = 25x².

c² = a² + b²

by the pythagorean theorem,

a , b , c forms a right angled Triangle.

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Circle o has a circumference of 28.3 cm. What is the length of the radius r?
andreyandreev [35.5K]
Circumference = 2Pi * r

28.3cm = 2pi * r ( Isolate r )
28.3cm / 2pi = r
R = 4.504

To verify work we can plug 4.504 back into the equations.

Circumference = 2pi*4.504 ~ 28.299 Which is true !
4 0
2 years ago
If the mine winch drum diameter is 6 m, calculate how far the cage will drop for each single rotation of the drum.use formular c
frozen [14]

The cage will drop 18.84m for each single rotation of the drum.

It is given that the diameter of the mine winch, d= 6 m.

We can calculate that how far the cage will drop for each single rotation of the drum by using the formula of the circumference.

Circumference, c = 2πr

where,

r = d/2 (radius of the mine winch)

r = 6/2

⇒ r = 3m

Circumference, c = 2πr

⇒ c = 2π×(3)

⇒ c = 6π

⇒ c = 18.84m

Hence, the cage will drop 18.84m for each single rotation of the drum.

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6 0
1 year ago
Help please thank you !!
swat32

Answer:

AC and AE

Step-by-step explanation:

Those are the only secants in the image shown.

6 0
3 years ago
M1Q1.) Which plot represents a stemplot of the data?
shusha [124]

Answer:

answer 1

Step-by-step explanation:

Since there's only 1 value in the 90-99 groups it is either 1 or 3.

Furthermore, there are only 2 values starting with 10.

This only fits with answer 1

6 0
3 years ago
Read 2 more answers
What is the common ratio for this geometric sequence ? 16,8,4,2
ahrayia [7]

Hello from MrBillDoesMath!

Answer:   1/2

Discussion:

Note that:

16 /2 = 8  (the next term in the sequence)

8 /2 = 4  (the next term in the sequence)

4 /2 = 2  (the next term in the sequence)

We are repeatedly multiplying by 1/2



Thank you,

MrB


8 0
3 years ago
Read 2 more answers
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