If side A is twice as long as B and C is 25 using the Pythagorean Theorem,What are the lengths of side A and B? Round to the nearest tenth if necessary

Respuesta :

Answer:

Therefore side B= 11.18  and side A=2×11.18=22.36.

Step-by-step explanation:

Given,side A is twice as long as B and C is 25.

Let side B= x

Then side A = 2x

Using Pythagorean Theorem,

A²+B²=C²

⇔(2x)²+x²=25²

⇔4x²+x²=625

⇔5x²=625

⇔x²=125

⇔x=√125

⇔x =11.18

Therefore side B= 11.18  and side A=2×11.18=22.36.

Answer:

The length of side A is 22.4 and length of side B is 11.9.

Step-by-step explanation:

Given:

If side A is twice as long as B and C is 25.

Solve by using the Pythagorean Theorem.

Now, to get the lengths of side A and side B.

As side C = 25.

Let the side B be [tex]a.[/tex]

As, given A is twice as long as B.

So, the side A be [tex]2a.[/tex]

So, we solve by using Pythagorean Theorem:

A² + B² = C²

[tex](2a)^2+(a)^2=(25)^2[/tex]

[tex]4a^2+a^2=625[/tex]

[tex]5a^2=625[/tex]

Dividing both sides by 5 we get:

[tex]a^2=125[/tex]

So, using square root on both sides we get:

[tex]a=11.18.[/tex]

Rounding to the nearest tenth B =  11.9.

Now, to get A by putting the value of [tex]a[/tex]:

[tex]2a\\=2\times 11.18\\=22.36.[/tex]

Rounding to the nearest tenth A  =  22.4.

Therefore, the length of side A is 22.4 and length of side B is 11.9.

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