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3 years ago

What is the area of rhombus ABCD? AWARDING BRAINLIEST URGENT!

Mathematics

2 answers:

Savatey [412]3 years ago

7 0

Answer:

Step-by-step explanation:

24.57 cm

kherson [118]3 years ago

6 0

Answer:

Choice 4) 78 cm^2

Step-by-step explanation:

OC = 7.8

AD = 10 (base = 10)

drop a line from the center where the 2 diagonals cross to be perpendicular to the base.

sin a2 = 1/2 height/7.8

1/2 height = 3.9

height = 7.8

area = 10 x 7.8 = 78 cm^2

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The perimeter of a rectangle playground is 40 yards it is 1 1/2 yards longer than it’s Wide what is the area of the playground

raketka [301]

The solution to the problem is shown below:
Perimeter = 40 yardsWide = W =?Length = W + 1.5 yards
The formula for the perimeter of a rectangular playground:P=2(L+W) where "L" is for the length and "W" is for the Width40 = 2( (W+1.5) + W )40 = 2(2W+1.5)40/2=2W + 1.520 - 1.5 =2WW=9.25L=9.25 + 1.5 =10.75
Area is L x WArea = 9.25 x 10.75Area = 102.125 squard unit

8 0

3 years ago

The age of Sita is five years more than Gautam's age. 5 years ago, the ratio of their ages was 3:2. Find their present ages.

vampirchik [111]

<h2>Question:-</h2>

The age of Sita is five years more than Gautam's age. 5 years ago, the ratio of their ages was 3:2. Find their present ages.

<h2>Solution:-</h2>

The age of Sita = (x + 5) years.

And, the age of Gautam = x years.

Now,

5 years ago, the ratio of their ages was 3 : 2

$\therefore$ $\bf \frac{3}{2} \: = \frac{x \: + \: 5}{x}$

Now by cross multiplying, we get,

3x = 2(x + 5)

3x = 2x + 10

3x - 2x = 10

Hence, the age of Sita = (x + 5) = (10 + 5) = 15 years.

And, the age of Gautam = x = 10 years.

Now,

The present age of Sita = 15 + 5 = 20 years. (Answer)

And, the present age of Gautam = 10 + 5 = 15 years. (Answer)

4 0

3 years ago

OVER DUED HOMEWORK pls help!! T-T

Mariulka [41]

Answer:

see explanation

Step-by-step explanation:

(9m + 4)² - (9m - 4)² ← expand both factors using FOIL

= 81m² + 72m + 16 - (81m² - 72m + 16) ← distribute parenthesis by - 1

= 81m² + 72m + 16 - 81m² + 72m - 16 ← collect like terms

= 144m

= 72(2m)

which is divisible by 72 for all m

4 0

2 years ago

Examine the diagram, where BD¯¯¯¯¯¯¯¯

Sidana [21]

The value of x based on the tangent-secant theorem is: 19.

Recall:

The secant-tangent theorem states that when a tangent and a secant meet outside a circle, the product of the secant length and it's segment outside the circle is equal to the square of the tangent segment length.