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Law Incorporation [45]
3 years ago
8

How is finding the area of a parallelogram like finding the area of two congruent triangles?

Mathematics
1 answer:
madreJ [45]3 years ago
4 0
If you look at either diagonal (line joining opposite angles) it forms 2 triangles that are identical, both in size and shape, but that are in different positions. So by finding the area of one using <u>base x height ÷ 2,</u> and then adding them together, you get the area of the polygon.
However, you will find that that would be the same as just doing <u>base x height</u>, so the area of a parallelogram is just that.
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Please help!!!!!!!!!!
Delicious77 [7]

f(x)=2x^2-4x+1

Substitute the values of x to the equation of the function f:

x=-1\to f(-1)=2(-1)^2-4(-1)+1=2(1)+4+1=7\\\\x=2\to f(2)=2(2^2)-4(2)+1=2(4)-8+1=1

Therefore we have two points (-1, 7) and (2, 1).

We can calculate the slope of line l.

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Substitute:

m=\dfrac{1-7}{2-(-1)}=\dfrac{-6}{3}=-2

<h3>Answer: A) -2.</h3>
5 0
3 years ago
There are 5 red marbles, 15 blue marbles, and 5 green marbles In a bag. If you reach In and randomly draw two marbles without re
puteri [66]

Answer:

A because 15 + 5 + 5 = 25. 100/25 = 4. (OWO)

Step-by-step explanation:

100% A, hope that helps :D

4 0
2 years ago
Read 2 more answers
You randomly draw a marble out of a bag containing 4 green marbles, 6 blue marbles, 8 yellow marbles, and 2 red marbles. Find th
shutvik [7]

Answer:

<h3>The probability is </h3><h3>\frac{3}{5}</h3>

Step-by-step explanation:

Green marbles = 4

Blue marbles = 6

Yellow marbles = 8

Red marbles = 2

4 + 6 + 8 + 2 = 20 \: marbles

The probability of drawing marble not yellow:

4 + 6 + 2 = 12 \\  \frac{12}{20}  =  \frac{3}{5}

Brainliest please.

5 0
2 years ago
48 is what percent of 40?
vlada-n [284]

Answer:

120%

Step-by-step explanation:

The ratio you are solving is 48/40

Divide the numerator by the denominator just like you would do with any other fraction.

48÷40=1.2

Your answer is 120%

5 0
3 years ago
Read 2 more answers
How many cubic centimeters of water can this paper cone cup hold?
IceJOKER [234]

Answer:

216π cubic centimeters

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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