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
strojnjashka [21]
3 years ago
5

Find the area and perimeter of an isosceles trapezoid with legs 25cm and bases 16cm and 30cm

Mathematics
2 answers:
Shkiper50 [21]3 years ago
6 0
Perimiter=base1+base2+side1+side2

side1=side2=25
base1=16
base2=30
perimiter=16+30+25+25=96 cm
area of trapezoid=1/2 height times (base1 +base 2)


base 1=16
base2=30

find height
isosolees so
30-16=14
14/2=7
find heigh using:
pythagorean theorem
25^2=7^2+h^2
625=49+x^2
subtract 49 from both sides
576=h^2
square root of both sides
24=h


(base1+base2) times height times 1/2=area
(16+30) times 24 times 1/2=(46) times 12=552 cm^22

the answer is 552 square centimiters or cm^2
and perimiter=96 cm
Varvara68 [4.7K]3 years ago
4 0
<u>A=1/2h(b1+b2)</u>
= 1/2(h)(30+16)
<em>>how to find h<</em>
<em>>30-16= 14/2 = 7<</em>
<em>>25²-7² = 625-49 = 576<</em>
<em>>√576 = 24 .. h=24<</em>
= 1/2(24)(30+16)
= 12(46)
A = 552 cm²
<u>P= b+b+l+l</u>
= 30+16+25+25
P = 96 cm
You might be interested in
A number has the same digit inits hundreds place and its hundredths place. how many times greater is the value of the digit in t
lorasvet [3.4K]

Answer:100

Step-by-step explanation: i looked it up

3 0
3 years ago
Kara is 4 more than twice as old as Julia. The sum of their ages is 13. How old is Julia?
Thepotemich [5.8K]
Let julia's age be x
Let Kara's age be 4x
x+4x=13
5x=13
x=13/5
    2.6 years 
3 0
3 years ago
Compare 3.14 to 31.4 which is greater or least equal
expeople1 [14]
3.14 is smaller. the more the decimal is to the right the larger the number is
5 0
3 years ago
Read 2 more answers
What is the constant rate of change for this equation y = 1/9x-20 ?​
k0ka [10]

Answer:

like:-

1/9x20 = <u>2 2/9</u>

1/9-20 = <u>19 8/9 </u>

Step-by-step explanation:

<h3><u>I'm not sure</u></h3>

3 0
2 years ago
Read 2 more answers
On Monday, 279 students went on a trip
belka [17]
45 students in each bus
7 0
3 years ago
Other questions:
  • I need help on this question
    5·2 answers
  • For a fruit salad recipe, Jenna combined 3/8 cup of raisins, 7/8 cup of oranges and 3/4 cups of apples. How many cups of fruit a
    11·1 answer
  • R = 2/3t + v , for t<br> need answer a how u got it
    7·1 answer
  • Factor the polynomial completely using the
    7·2 answers
  • How do i check 11z-5=9z+7
    7·2 answers
  • You have two credit cards. One has a balance of $3,745.00 at a 6.25% APR and the other has a balance of $1,045.00 and is depende
    5·2 answers
  • he point-slope form of the equation of a line that passes through points (8, 4) and (0, 2) is y – 4 = (x – 8). What is the slope
    7·1 answer
  • Plz help meh with this Q.Q
    13·1 answer
  • The midpoint of AB is M(6, 3) . If the coordinates of A are (7, 4) , what are the coordinates of B?
    12·1 answer
  • I’ll give brainliest i’m in middle school<br> help
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!