1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
arsen [322]
3 years ago
6

The diagonals of a rhombus are 30cm and 16cm. Find its area, the length of a side and its perimeter.​

Mathematics
2 answers:
Bad White [126]3 years ago
8 0

Answer:

Step-by-step explanation:

\large \boldsymbol {} \tt Formulas : \\\\d_1^2+d_2^2=4a^2 \\\\S=\dfrac{1}{2} d_1d_2 \\\\  \ where  \ S \  is  \ the \  area \  of \  the  \ rhombus  \ ;\\\\\  and \  d_1  \ and \ d_2 \  are \ its \ diagonals \ ; \ and \  a \ ,  \\\\\\  respectively, \  is\  the \ side \  of\  the rhombus \\\\ then : \\\\ 4a^2=16^2+30^2 \\\\ 4a^2=1156 \\\\a^2=289 \\\\a=17  \ \ then  \  P=4a=17*4=\boldsymbol {68} \\\\  \tt S=\dfrac{1}{2} \cdot 30 \cdot 16 =\boldsymbol {240 } \\\\ Answer : S=240 \ ; a=17  \ ;  \  P=68  \ ;

Free_Kalibri [48]3 years ago
5 0

Answer:

Area = 1/2 × product of diagonalsso area = 1/2 × 30 ×16 = 240 cm²

also diagonals bisect each other at right angles so 1/2×30= 15cm,, 1/2× 16 = 8cm

therefore by pythagoras theorem,

{15 }^{2}+ {8}^{2}= {side}^{2}\sqrt{289 = side}

side = 17

Perimeter = 4×17 =68 cm.

You might be interested in
Which property is shown?<br><br> If m∠ABC = m∠CBD, then m∠CBD = m∠ABC
otez555 [7]

ANSWER: symmetric property

hope it helps thanks

brainliest pls

6 0
2 years ago
Read 2 more answers
What is the slope of the following linear equation y + 2x = 5 ?
Arte-miy333 [17]

Answer:

slope = -2

Step-by-step explanation:

The general structure of an equation in slope-intercept form is:

y = mx + b

In this form, "m" represents the slope and "b" represents the y-intercept. Since the given equation is not in the exact slope-intercept form, we need to rearrange it to identify the slope.

y + 2x = 5                         <----- Given equation

y = -2x + 5                       <----- Subtract 2x from both sides

Now, we can see that in the "m" position, there is a value of -2. This makes the slope = -2.

4 0
2 years ago
HELPPPPPPPPPPPPPP PLZZZZZZZZZZZ clock arithmetic Will mark brainiest .
GarryVolchara [31]

Answer:

a) 29

b) 0

c) 7

d) 3/8

Step-by-step explanation:

Whenever you're facing a clock maths problem, the solution always have to be < to the number of hours in the given clock.  If it's > the number of hours of the given clock, you subtract the number of hours until you get a result <= the number of clock hours.

If the result is negative, you add the clock hours.

a) 21 - 33 = -12  , so -12 + 41 = 29

b) 13 * 4 = 52,  then do 52 - 52 = 0, since answer has to be < 52.

c) 11+19 = 30, 30 - 23 = 7

d) 3/8 = 3/8, since 3/8 <= 15, you're also fine.

7 0
3 years ago
What is 3.65 x 5<br> ‍♀️
tiny-mole [99]

Answer:

18.25

Step-by-step explanation:

4 0
3 years ago
Jessica can walk 1.5 kilometers in 30 minutes. How long will it take her to walk 2.5 kilometers?
RUDIKE [14]

Answer:

It should be 20minutes at a easy pace

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • a magazine reports that the average bowling score for league bowlers in the united states is 157 with a standard deviation of 12
    10·1 answer
  • PLEASE PLEASE HELP ME<br>ASAP!!!!!​
    7·1 answer
  • Plz help me this question if you would like to gain more points from this question then press my name and go to my lateset quest
    15·1 answer
  • What is the surface area of the regular pyramid if the area of the square base is 16 square cm and the slant height is 8 cm?
    10·2 answers
  • Draw a rectangle that has a perimeter of 20 units and an area of 25 square units
    10·1 answer
  • Find the measures of all four angles if 3·(m∠1+m∠3) = m∠2+m∠4.
    9·1 answer
  • Which is greater 6 feet or 2 meters
    15·2 answers
  • 6 radians is the same as ____°.<br> Round to the nearest hundredth of a degree.
    7·2 answers
  • Barney has to run some errands around town. Look at the map below to calculate his distance if he starts at home, goes to the vi
    7·1 answer
  • Willow has 1000!dog treats and Lilly has 80 dogs how many do each of them get
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!