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Lady bird [3.3K]
3 years ago
6

What is the length of the diagonal of the square shown below

Mathematics
2 answers:
scoundrel [369]3 years ago
8 0

Answer:

11√2

Step-by-step explanation:

Since the diagonal of the square is the hypotenuse of the right triangle whose other sides measure 11 units then we can calculate it by:

a^{2}=x^{2}+x^{2}\Rightarrow a^{2}=2x^{2}\Rightarrow \sqrt{a^{2}}=\sqrt{2x^{2}}\Rightarrow a=x\sqrt{2}

In addition to this, the diagonal bisects the angle in each corner of the square dividing it into two 45º angles. What help us to explain why the the two triangles formed are isosceles.

vlabodo [156]3 years ago
3 0

The square divided into 2 equal isosceles triangles which are 45 45 90.

The diagonal is the hypotenuse of the triangles

Given leg = 11

Ratio of leg: hypotenuse = x : x√2

So if leg x = 11 the hypotenuse = 11√2

Answer is E. 11√2

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7. If the longer leg of a right triangle is twice as long as the shorter leg, what is the ratio of
kicyunya [14]

Answer: The ratio is 2.39, which means that the larger acute angle is 2.39 times the smaller acute angle.

Step-by-step explanation:

I suppose that the "legs" of a triangle rectangle are the cathati.

if L is the length of the shorter leg, 2*L is the length of the longest leg.

Now you can remember the relation:

Tan(a) = (opposite cathetus)/(adjacent cathetus)

Then there is one acute angle calculated as:

Tan(θ)  =  (shorter leg)/(longer leg)

Tan(φ) = (longer leg)/(shorter leg)

And we want to find the ratio between the measure of the larger acute angle and the smaller acute angle.

Then we need to find θ and φ.

Tan(θ) = L/(2*L)

Tan(θ) = 1/2

θ = Atan(1/2) = 26.57°

Tan(φ) = (2*L)/L

Tan(φ) = 2

φ = Atan(2) = 63.43°

Then the ratio between the larger acute angle and the smaller acute angle is:

R = (63.43°)/(26.57°) = 2.39

This means that the larger acute angle is 2.39 times the smaller acute angle.

5 0
3 years ago
How maany 0.5 ltres make 50 litres
AysviL [449]
100
Simple:

0.5×100=50
6 0
3 years ago
Read 2 more answers
Brianna typically sells candy bars for $4.70. During a sale she prices them at $3.30. What is the approximate percent discount o
Elena-2011 [213]

Answer:

30%

Step-by-step explanation:

One simple way of finding out discounts is to simplify our answer by starting with 10% and subtracting from that.

If the original price were to have a 10% discount, it would be 4.70/10 for .47 per 10% off.

10% gives us 4.23, so let's take another 10% off by doing 4.23-.47, which is equal to 3.76. While lower, it's not our answer so lets do another 10%

3.76-4.7 = $3.29

With a total of 3 10%'s taken off, or in this case, 30% off, we can conclude that the discounted prices of $3.29 is 30% of the original price.

4 0
2 years ago
Read 2 more answers
Find the Value of X (In this picture)​
slava [35]

Answer:

x = 63

Step-by-step explanation:

It's Quadrilateral so:

360-90-72= x + x +22 (Cause that 2 triangle is isosceles)

2x=126

x=63

4 0
3 years ago
Divide 2x2+7x-3 by 2x+5. Which expression represents the quotient and remainder
Fiesta28 [93]

Answer:

0

Step-by-step explanation:

7 0
3 years ago
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