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3 years ago

What is the value of 2npie

Mathematics

2 answers:

torisob [31]3 years ago

8 0

The answer to this problem is 6.28.

Ivenika [448]3 years ago

3 0

The Correct Answer to your problem is 6.28

Depends on the value of n. If n is even, cos(n*pi) = cos(0) = 1 If n is odd, cos(n*pi) = cos(pi) = -1

cos(0) = 1 When you make 1 full 2pi rotation, you end up at the same place. So cos(2*n*pi) = cos(0) = 1.

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2 years ago

Find the area of the triangle with the given base and height. b = 3 m and h = 10 1/2 m

svetoff [14.1K]

Statement:

The base of a triangle is 3m and its height is $10 \frac{1}{2}$ m.

To find out:

The area of the triangle.

Solution:

Given, base = 3m, height = $10 \frac{1}{2}$ m
We know,

$\sf \: area \: \: of \: \: a \: \: triangle = \frac{1}{2} \times base \: \times height$

Therefore, the area of the triangle

$\sf = (\frac{1}{2} \times 3 \times 10 \frac{1}{2} ) {m}^{2} \\ \sf = ( \frac{1}{2} \times 3 \times \frac{21}{2} ) {m}^{2} \\ = \sf \frac{63}{4} {m}^{2} \\ = \sf 15\frac{3}{4} {m}^{2}$

Answer:

The area of the triangle is $\sf \: 15 \frac{3}{4} {m}^{2}$

Hope you could understand.

If you have any query, feel free to ask.

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