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iragen [17]
3 years ago
13

If a triangle has side 6 feet and 9 feet and perimeter is 23 feet , how long is the third side ?

Mathematics
2 answers:
tiny-mole [99]3 years ago
8 0

The perimeter of a triangle is found by adding all the three sides.


Let's call the third side "x"

So,

6+9+x = 23

15+x = 23

x = 8

skad [1K]3 years ago
5 0

Answer: the third side is 8 add the other two sides then subtract from the perimiter


Step-by-step explanation:


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Please answer the attached question by selecting of the the given answers.
Alchen [17]

Answer:

The correct answer is option A. Base = 11 cm and height = 13 cm

Step-by-step explanation:

It is given that, height of a triangle is 2 cm more than its base.Then height is increased by 2 cm.Then the area of triangle becomes 82.5 cm²

<u>To find the base an d height of original triangle</u>

Let x be the original base 'b' then the height  h = x + 2

New height h = x + 2 + 2 = x + 4

Area = bh/2

82.5= (x(x + 4)/2

165 = x² + 4x

x + 4x - 165 = 0

Solving we get x = 11 and x = -15

Take positive value x = 11

Therefore base = 11 and height = x + 2 = 13 cm

The correct answer is option A. Base = 11 cm and height = 13 cm

5 0
3 years ago
The following scores were obtained by 11 footballers in a goal-competition 536878311632. The median score was?
sineoko [7]

Answer:

3

Step-by-step:

1,1,2.2.3.3.3.5.6.6.7.8.8

more 3s than other numbers

median is 3

4 0
3 years ago
Is this one question correct
bazaltina [42]

Answer: 2/3ft or C

Step-by-step explanation: Solve for b in the area of a triangle equation, A=1/2bh. Multiply 1/2 by 2 on both sides to cancel it: A(2)=bh.  Divide both sides by h: \frac{A(2)}{h}=b

A = 2/5

h = 6/5

b = ?

Next, we can plug the numbers into this equation: \frac{2/5(2)}{6/5}=b

Multiply 2 and 2/5: 4/5 / 6/5

Take the reciprocal of 6/5: 4/5 x 5/6 = \frac{20}{30}

\frac{20}{30} ÷ \frac{10}{10} = \frac{2}{3}

7 0
3 years ago
The formula p=8n-30 gives the profit p when a number of items n are each sold at $8 and expenses totaling $30 are subtracted.
JulsSmile [24]
If the profit was 170 then 25 things were bought. since n is 25 you multiply it by 8 which is 200 and if you then subtract 30 the answer is 170
5 0
3 years ago
When you find the surface area of a cube, you ________ the length of the cube and<br> multiply by 6
Papessa [141]

Answer:

The word for the blank would be "square".

Step-by-step explanation:

Since the area of a face of a cube would be square its side length, the total surface area of a cube would be that times 6.

Hope this helped!

8 0
3 years ago
Read 2 more answers
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