What is the area of LMN

Mathematics

1 answer:

irakobra [83]2 years ago

8 0

4 square units.

The easiest way to find this is by looking at the triangle as if NL was the base. In this case PM would be the height. Since a triangle is the same shape even when we move it or rotate it, this is a common strategy to finding areas when the direction is tough for us.

Now that we have this we can measure the lengths of the base and height and use them in the triangle area formula.

Base = 4

Height = 2

Area of a triangle = 1/2bh

Area of a triangle = 1/2(4)(2)

Area of a triangle = 2(2)

Area of a triangle = 4

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Explain why a positive times a negative is a negative number.

prohojiy [21]

Explanation:

This can be explained by thinking numbers on the number line as:

Lets take we have to multiply a positive number (say, 2) with a negative number say (-3)

2×(-3)

Suppose someone is standing at 0 on the number line and to go to cover -3 , the person moves 3 units in the left hand side. Since, we have to compute for 2×(-3), The person has to cover the same distance twice. At last, he will be standing at -6, which is a negative number.

A image is shown below to represent the same.

Thus, a positive times a negative is a negative number.