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
Usimov [2.4K]
3 years ago
5

What is the area of the black section?

Mathematics
1 answer:
NeX [460]3 years ago
7 0
You can split this up into 3 parts:

The large triangle with base 16cm and height 24.3cm has an area:
A = 1/2bh
A = 0.5x16x24.3
A = 194.4cm²

One of the other triangles with base 13.5cm and height 12cm has an area:
A = 0.5x12x13.5
A = 81cm²

The last triangle with base 13.5cm and height 5cm has an area:
A = 0.5x13.5x5
A = 33.75cm²

So you have 3 triangle areas. To get the black area, you subtract the two white triangles (in your picture) from the area of the large triangle that was first calculated above so:

Black area = 194.4 - 81 - 33.75 = 79.65cm²
That should be the area... I might have messed up on the basic multiplication, but that's the overall process.
You might be interested in
You are applying fertilizer to a football field. The field is 360 feet long and 160 feet wide. You use 8 pounds of fertilizer pe
Agata [3.3K]
10 bags of fertilizer for the field
8 0
3 years ago
Read 2 more answers
You can use the formula a = h/n is you want to find the batting average a of a batter who has h hits in n times at bat. Solve th
Akimi4 [234]
The formula is:
a = h / n.
h = a · n
If a = 0.285 and n = 400, then:
h = 0.285 · 400 = 114
Answer:
Joseph has 114 hits.
6 0
3 years ago
Read 2 more answers
She once sang in the choir, and wore pretty clothing. Did I use the comma right ?
kolezko [41]
I think there is no need to have a comma in this sentence
6 0
3 years ago
Read 2 more answers
ASAP!! If quadrilateral PQRS is a square, what are the coordinates of point E?
qwelly [4]

Answer:

E - (28, 25)

Hope this helps!

5 0
3 years ago
If x over x+2 = 6/7 then x = what?
djverab [1.8K]
Move all terms to the side of the answer x = -8/7 Hope this helps! ;D
8 0
3 years ago
Other questions:
  • If 4+2=26 and 8+1=79 and 6+5=111 what is 7+3=?<br> *Please Show Work*
    14·1 answer
  • Are the areas of two congruent figures equal? Explain. Draw a diagram to support your answer.
    9·1 answer
  • Y=4x^2+7x vertex form
    7·1 answer
  • Lashonda, Pablo, and Hong served a total of 143 orders Monday at the school cafeteria. Pablo served 4 times as many orders as Ho
    14·1 answer
  • Please help I am dying<br><br> Points=30 <br> And I will thank you and mark you brainliest
    8·1 answer
  • Simplify (-2/3 square root 6)(9 square root 3)
    13·1 answer
  • Which part of the angle is the vertex? <br>​
    12·2 answers
  • Please help me guys I need it
    6·1 answer
  • Anyone wanna help me??
    11·1 answer
  • Which of the following describes the behavior of the graph shown over the interval (-2,2)?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!