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Elza [17]
3 years ago
8

Describe and correct the error in finding the area of the triangle.​

Mathematics
2 answers:
irina1246 [14]3 years ago
8 0

Answer:

Height, base(4,1) to A(4,3)

Step-by-step explanation:

The height that is shown is incorrect as it is showing the distance between A and B, which is not the height of the triangle, and simply a side. We need to find the altitude(height) which is a line perpendicular to the base. If we draw a line that is perpendicular to the base that intersects the highest point of the triangle, A, we get the point of intersection of that line and the base at (4,1)

adelina 88 [10]3 years ago
3 0

Answer: height;  (4, 1) to (4, 3)

<u>Step-by-step explanation:</u>

Area of a triangle is (1/2) b × h  where h is perpendicular to the base.

The base is correct - distance from (1, 1) to (4, 1).

The height is incorrect. It should be the distance from (4, 1) to (4, 3).

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Anna11 [10]
A straight line vertically that goes the x coordinate 4.
7 0
3 years ago
A cylinder of manganese (length 4.00 cm, diameter = 1.00 cm) has a mass of 22.62 g. What is the density of manganese?
Gnom [1K]
Equation for density is mass/volume

Mass=22.62 g

Volume= 22/7 x 1/2^2 x 4

3.14 x 0.5 x 0.5 x 4

=3.14 cm3

Mass/ Volume

22.62/3.14

7.2 g/cm3 is the answer

5 0
3 years ago
Which description of the graph of y=110x is most accurate?
hodyreva [135]

Answer:

The correct option is;

The graph is a line that rises steeply from left to right and passes through the origin

Step-by-step explanation:

The given equation is y = 110·x

Comparing the given equation to the general equation of a straight line, y = m·x + c

Where;

m = The slope of the straight line graph

c = The y-intercept

We have;

The slope of the given equation, y = 110·x = 110

The y-intercept, which is given by the constant c in the given equation = (0, 0)

Therefore, by the slope of the equation, for each unit increase in x, y increases by 110, therefore, the graph is a straight line that rises steeply and passes through the origin

6 0
3 years ago
Please help and thank you! Will mark whoever answers right the brainliest!
laila [671]

Answer:

Step-by-step explanation:

Part A. John will not be painting the floor area of that of the door or window openings.

Part B. Subtracting the areas of the floor, door, and window from the total surface area will provide the area to be painted so Judy is correct.

Part C.

We first need to find the area to be painted.

A=floor+2(wall1)+2(wall2)-window-door

A=14(7)+2(7)8+2(14)8-3(6)-3(7)

A=98+112+224-18-21

A=395 ft^2

Since a gallon of paint will cover 350 ft^2

395ft^2(gal/350ft^2)=1.13 gal

John will need approximately 1.13 gallons of paint. (Rounded to nearest hundredth of a gallon)

3 0
3 years ago
Read 2 more answers
How do I do this greatest common factor
zaharov [31]
The greatest common factor is 5
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3 years ago
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