Find the area of the figure

Mathematics

2 answers:

sweet [91]3 years ago

6 0

The height of the triangle is 60cm, or 20cm+ 40cm.

The equation for area of a triangle is A=1/2bh

Your base is 30 cm height is 20cm.

A=1/2(30)(20)
A=1/2(600)
A=300cm^2

Your answer is 300cm^2

vlabodo [156]3 years ago

4 0

Answer:

$height = (20 + 40) cm\\ = 60cm \\ area = \frac{1}{2} \times b \times h \\ = \frac{1}{2 } \times30 \times 60 \\ = \frac{1800}{2} \\ area= 900 {cm}^{2}$

Step-by-step explanation:

Hope that this is helpful .

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vampirchik [111]

Answer:

Step-by-step explanation:

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8 0

3 years ago

30 points!!!

AysviL [449]

<h3>Answer: The graph is shown in the attached image below</h3>

-2x means -2*x or "-2 times x" where x is a placeholder for any number you want.

To graph y = -2x, you just need two points. Each point is of the form (x,y)

Let's plug in zero as it is often the easiest to work with.

If x = 0, then -2*x = -2*0 = 0. Notice how I replaced x with 0 and simplified.

Therefore, if x = 0, then y = 0. We have (x,y) = (0,0) as one point on this line. I have marked it as point A in the graph.

Point B is (1, -2) and it is found by plugging x = 1 into the equation to get...

y = -2x

y = -2*1

y = -2

You could find other points, but two points is enough to draw a straight line through them. The slope of this line is -2 = -2/1. The y intercept is 0.