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3 years ago

When we use the formula for the area of a triangle, why do we use the height and not the hypotenuse?

Mathematics

2 answers:

ira [324]3 years ago

5 0

Answer:

area is a half x l x h

Step-by-step explanation:

we cannot use the hypotenuse because it wouldn't bring the area

dimulka [17.4K]3 years ago

4 0

The area is B(h) 1/2 which mean base times height divided my 1/2 since a triangle is half of a square

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Which of the following represents the graph of f(x) = 3x2 - 12 ?

xxMikexx [17]

F(x) = 3x² - 12

Finding where the graph crosses the axes will help us to determine the correct graph

When x = 0,
f(0) = 3(0)² - 12
f(0) = -12

So we have one point (0, -12)

When y = 0
0 = 3x² - 12
12 = 3x²
4 = x²
√4 = x
x = ⁺/₋ 2

So the graph crosses the x-axis at -2 and 2 and the y-axis at -12

The correct graph is option A

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3 years ago

How does the length of the hypotenuse in a right triangle compare to the lengths of the legs?

gavmur [86]

we know that

In a right triangle we have

two legs and one hypotenuse

Let

a,b -----> the legs of the right triangle

c-----> the hypotenuse of the right triangle (the greater side)

Applying the Pythagoras Theorem

$c^{2}=a^{2}+b^{2}$

therefore

the answer is

The length of the hypotenuse squared is the length of one leg squared plus the length of another leg squared

6 0

3 years ago

Read 2 more answers

A diver descends from an elevation of 6 feet below sea level to an elevation of 106 feet below sea level in 2 equal intervals. W

ra1l [238]

Answer

His new position is 3.75 meters 12.25-8.5=3.75 her new position is 20ft 9 1/2 +10 1/2=20

Step-by-step explanation:

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3 years ago

What is the length of CD to the nearest 10th?

Snezhnost [94]

Answer:

$\huge \boxed{\mathrm{10.3 \ units}}$

Step-by-step explanation:

To solve for CD, we can create a right triangle.

Where CD becomes the hypotenuse.

The length of the base of the triangle is 9 units.

The length of the height of the triangle is 5 units.

Apply Pythagorean theorem to solve for the hypotenuse.

$\sf hypotenuse = \sqrt{(base )^2 +(height )^2 }$

$c=\sqrt{9^2 +5^2 }$

$c=\sqrt{106}$

$c \approx 10.29$

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3 years ago

Jason's piggy bank contained $5.70 in nickels and pennies. If there were 30 more pennies than nickels, how many of each did he h

ValentinkaMS [17]

Answer:

98 nickles and 128 pennies

Step-by-step explanation:

You probably can't read my hand writing but I spent like, 15 minutes on this. This is the correct answer, but I don't know how to explain how it is but I promise it is!

8 0

3 years ago