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3 years ago

Find the area of the kite please help and just don’t write down random answers

Mathematics

1 answer:

Zanzabum3 years ago

6 0

Answer:

187.06 units²

Step-by-step explanation:

Area of kite:

½ × d1 × d2

½d1 = 18sin(30)

½d1 = 9

d1 = 18

d2 = 9/tan(60) + 18cos(30)

= 12sqrt(3)

Area = ½ × 18 × 12sqrt(3)

108sqrt(3) units²

187.0614872 units²

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The length of a rectangle is twice its width. Find its area, if its perimeter is 7 1/3 cm The area of the rectangle is _sq. cm.

Harman [31]

Answer:

The area of rectangle is $2\frac{80}{81}\ cm^2$

Step-by-step explanation:

we know that

The perimeter of a rectangle is equal to

$P=2(L+W)$

we have

$P=7\frac{1}{3}\ cm=7+\frac{1}{3}=\frac{22}{3}\ cm$

$\frac{22}{3}=2(L+W)$

$\frac{11}{3}=(L+W)$ ----> equation A

Remember that

The length of a rectangle is twice its width.

$L=2W$ ----> equation B

substitute equation B in equation A

$\frac{11}{3}=(2W+W)$

solve for W

$W=\frac{11}{9}\ cm$

Find the value of L

$L=2(\frac{11}{9})$

$L=\frac{22}{9}\ cm$

Find the area of rectangle

$A=LW$

substitute the values

$A=(\frac{22}{9})(\frac{11}{9})$

$A=\frac{242}{81}\ cm^2$

Convert to mixed number

$\frac{242}{81}\ cm^2=\frac{162}{81}+\frac{80}{81}=2\frac{80}{81}\ cm^2$

7 0

3 years ago

Robyn, a photographer living in New York City, is framing some of the pictures she took of the city. Each picture is 5 inches by

goblinko [34]

The perimeter of each frame would be 24 inches.
24 x 5 = 120
So the total length around all of the frames would be 120 inches.

3 0

3 years ago

Solve the equation 4x-12=(11-3x)

allochka39001 [22]

Answer:

Step-by-step explanation:

4x - 12 = 11 - 3x

Bringing like terms on one side

4x + 3x = 11 + 12

7x = 23

x = 23/7

3 0

3 years ago

A square of side 72 cm and a rectangle of length 90 cm have same perimeter. Find the difference in areas ?

olga_2 [115]

Answer:

324 cm²

Step-by-step explanation:

→ Work out perimeter of square

72 + 72 + 72 + 72 = 288

→ Work out the width of the rectangle

288 - (90 × 2) = 108

108 ÷ 2 = 54

→ Work out area of square

72 × 72 = 5184 cm²

→ Work out area of rectangle

90 × 54 = 4860 cm²

→ Minus the areas from each other

5184 cm² - 4860 cm² = 324 cm²

5 0

2 years ago

Read 2 more answers

In the decimal number .98703, what place value does the 0 holdd

denpristay [2]

The 0 holds the ten thousandths place as you can see here.
9 tenths 
8 hundredths 
7 thousandths 
0 ten thousandths 
3 hundred thousandths

5 0

2 years ago