All categories

3 years ago

Calcola l'area di un rombo sapendo che il perimetro è 160 cm è la sua altezza misura 38,4 cm

Mathematics

1 answer:

AURORKA [14]3 years ago

4 0

Answer:

41,6 cm

Step-by-step explanation:

Formula for Perimeter of a rhombus: P = 2L + 2H (H is the height, L the length)

Perimeter: 160 cm = 2L + 2(38,4 cm), or

160 cm + 76.8 cm + 2L, or

83.2 cm = 2L

and so the height (altezza) is H = 83.2 cm / 2 = 41,6 cm

You might be interested in

Two angels are supplementary. The measure of the large angle is four more than three times the measure of the small angle. Find

sashaice [31]

Answer:

The measure of the two supplementary angles is

Small angle = x = 44°

Large angle = y = 136

Step-by-step explanation:

Supplementary angles are two angles whose measures add up to 180° .

Let

Small angle = x

Large angle = y

x + y = 180°.... Equation 1

The measure of the large angle is four more than three times the measure of the small angle

Hence: y = 4 + 3x

We substitute 4 + 3x for y in Equation 1

x + 4 + 3x = 180°

4x + 4 = 180°

4x = 180° - 4

4x = 176

x = 176/4

x = 44°

Solve for y

y = 4 + 3x

y = 4 + 3(44)

y = 4 + 132

y = 136°

Therefore, the measure of the two supplementary angles is

Small angle = x = 44°

Large angle = y = 136

5 0

2 years ago

Find the area of a circle whose radius is 12 in. Round to the nearest tenth

irina1246 [14]

Area of a circle = pi r^2 = pi * 12^2 = 452.4 in^2 to nearest tenth.

6 0

3 years ago

Read 2 more answers

Evaluate 2/ 3 ÷ 4 /5 Give your answer as a fraction in its simplest form.

gulaghasi [49]

Step-by-step explanation:

<u>Our problem:</u>

$\frac{2}{3} \div \frac{4}{5} = unknown$

How to solve?

Find the reciprocal (opposite) of 4/5, then multiply. Simplify if necessary.

<u>Find the reciprocal:</u>

$\frac{2}{3} \times \frac{5}{4} = unknown$

<u>Multiply:</u>

$\frac{2}{3} \times \frac{5}{4} = \frac{10}{12}$

<u>Simplify:</u>

$\frac{10 \div 2}{12 \div 2} = \frac{5}{6}$

5/6 is your answer.

7 0

2 years ago

What is the inverse of f(x)=2^x

GuDViN [60]

Answer:

Step-by-step explanation:

$f(x)=2^x$

$y = {2}^{x}$

$x = {2}^{y}$

${2}^{y} = x$

$ln( {2}^{y} )=ln(x)$

$yln(2)=ln(x)$

<h3> $\frac{yln(2)}{ln(2)} = \frac{ln(x)}{ln(2)}$ </h3><h3> $y = \frac{ln(x)}{ln(2)}$ </h3><h3> ${f}^{ - 1} (x) = \frac{ln(x)}{ln(2)}$ </h3><h3>Hope it is helpful...</h3>

3 0

3 years ago

The following 5 keys are for the following 5 locked padlocks. Each key opens one and only one padlock. Different keys open diffe

Scilla [17]

${5}^{5}$

is the answer.

7 0

2 years ago

Calcola l'area di un rombo sapendo che il perimetro è 160 cm è la sua altezza misura 38,4 cm​

Calcola l'area di un rombo sapendo che il perimetro è 160 cm è la sua altezza misura 38,4 cm