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
9966 [12]
3 years ago
6

A paper air plane looking polygon with sides of 5 5 and 8 what is the area

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
8 0
If it has 3 sides then it's a triangle. 
Using the formula A= \sqrt{s(s-a)(s-b)(s-c)} 
where s= \frac{a+b+c}{2}
and  a=5 b=5 c=8

∴s= \frac{5+5+8}{2} =9
  area= \sqrt{9(9-5)(9-5)(9-8)}
  area= \sqrt{144} = 12units^{2}
You might be interested in
I NEEEDDDD HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZ
Montano1993 [528]

Answer:

80 cm

Step-by-step explanation:

The diagonals divide the rhombus into four congruent triangles.  The height of each triangle is 18/2 = 9, and the hypotenuse is 41.  Using Pythagorean theorem, the width of each triangle is:

c² = a² + b²

41² = 9² + x²

x = 40

Therefore, the longer diagonal is 2×40 = 80.

5 0
2 years ago
1 and 5/6 + 2 and 2/11
lions [1.4K]
1 \frac{5}{6} +2 \frac{2}{11} =\frac{(1\times6)+5}{6} +\frac{(2\times 11)+2}{11} =\frac{11}{6}+\frac{24}{11} \\\\=\frac{11\times 11}{6\times 11} +\frac{24\times6}{11\times6} =\frac{121}{66} +\frac{144}{66}=\frac{121+144}{66} =\frac{265}{66}\\\\=\boxed{\bf{4\frac{1}{66}}}
3 0
3 years ago
Given: AE ≅ CE ; DE ≅ BE Prove: ABCD is a parallelogram. Parallelogram A B C D is shown. Diagonals are drawn from point A to poi
nikklg [1K]

Answer:

The proof is below

Step-by-step explanation:

Given a parallelogram ABCD. Diagonals AC and BD intersect at E. We have to prove that AE is congruent to CE and BE is congruent to DE i.e diagonals of a parallelogram bisect each other.

In ΔACD and ΔBEC

AD=BC              (∵Opposite sides of a parallelogram are equal)

∠DAC=∠BCE       (∵Alternate angles)

∠ADC=∠CBE        (∵Alternate angles)

By ASA rule, ΔACD≅ΔBEC

By CPCT(Corresponding Parts of Congruent triangles)

AE=EC and DE=EB

Hence, AE is conruent to CE and BE is congruent to DE

6 0
2 years ago
BRANLIEST AND 50 POINTS
djverab [1.8K]
The prime factorization for 135 is 3,3,3, and 5.
6 0
3 years ago
Read 2 more answers
Plz show work to get brainliest
gogolik [260]

Answer:

45 students speak Spanish at Francis Lewis High School

Step-by-step explanation:

Option1:

  \frac{72}{400}  = \frac{x}{250}

  18000 = 400x

  x = 45 students speak Spanish at Francis Lewis High School

Option2:

  72 ÷ 400 = 0.18

  0.18 * 250 = 45 students speak Spanish at Francis Lewis High School

4 0
2 years ago
Other questions:
  • A man starts walking north at 2 ft/s from a point P. Five minutes later a woman starts walking south at 3 ft/s from a point 500
    11·1 answer
  • The floral shop marks up their arrangements 31% on cost. If the floral arrangement costs $150, what would the selling price be?
    15·2 answers
  • 0.2.0.4, 0.6, 0.8, 1....<br> Arithmetic or geometric
    10·1 answer
  • What is 0.6 of 120 really hard and i need an answer for today
    9·1 answer
  • Calcium is essential to tree growth because it promotes the formation of wood and maintains cell walls. In 2010, the concentrati
    13·1 answer
  • Find the surface area of the figure below.
    11·2 answers
  • Which complex number has a distance of |17| from the origin on the complex plane?
    15·1 answer
  • scenario a: get $2,000 deposited into your bank account today, and $50 added each month for a year? make a f(×) function pls​
    13·1 answer
  • PLEASE HELP I WILL GIVE BRANLIEST TO WHO ANSWERS FIRST
    8·2 answers
  • What is the slope of a line parallel to the line whose equation is 4x-y=-4
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!