3 years ago

13. P = a + b + c (perimeter of a triangle);P= 12, a = 3, c = 5

Mathematics

1 answer:

Kamila [148]3 years ago

5 0

Answer:

if you’re looking for b, then its 4

Step-by-step explanation:

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==================================================

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3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%7B4%20a%7D%5E%7B2%7D%20%2B%20%20%7B12a%7D%5E%7B2%7D%20%7D%20" id="TexFormula1

PolarNik [594]

Answer:

The answer is 4a

Step-by-step explanation:

1) Simplify 4a² + 12a² to 16a².

$\sqrt{ {16a}^{2} }$

2) Use this rule:

$\sqrt{ab} = \sqrt{a} \sqrt{b}$

$\sqrt{16} \sqrt{ {a}^{2} }$

3) Since 4 × 4 is 16, the square root of 16 is 4.

$4 \sqrt{ {a}^{2} }$

4) Simplify.

$4a$

Therefor, the answer is 4a.

8 0

3 years ago

13. P = a + b + c (perimeter of a triangle);P= 12, a = 3, c = 5​

13. P = a + b + c (perimeter of a triangle);P= 12, a = 3, c = 5