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
Burka [1]
3 years ago
15

Help find perimeter and area

Mathematics
1 answer:
klio [65]3 years ago
8 0

Answer: perimeter = 96mm, Area = 564mm².

Step-by-step explanation:

From the diagram, it is a trapezium, it has a rectangle joined together by a right angled triangle. Now to find the perimeter, we add all the dimensions together. To get the other side of the rectangle, which is also the perpendicular height of the figure, we take the Pythagoras. Let the perpendicular height = x

Therefore,

25² = ײ + 7²

625 = x² + 49

x² = 625 - 49

x² = 576

x. = √576

= 24.

Now the perimeter

= 20 + 25 + 7 + 20 + 24

= 96mm.

Area of the figure will be

= 1/2( a + b )h

Where a = 20, b = 20 + 7 = 27 and h = 24, now substitute for the values

( 20 + 27) x 24

---------------------

2

= 47 x 24/2

= 47 x 12

= 564mm²

You might be interested in
The midpoint of CD is M(-1,-2). One endpoint is C (-9,-4). Find the coordinates of the other endpoint D.
yan [13]
\bf ~~~~~~~~~~~~\textit{middle point of 2 points }\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&C&(~ -9 &,& -4~) 
%  (c,d)
&D&(~ x &,& y~)
\end{array}\qquad
%   coordinates of midpoint 
\left(\cfrac{ x_2 +  x_1}{2}\quad ,\quad \cfrac{ y_2 +  y_1}{2} \right)
\\\\\\
\left( \cfrac{x-9}{2}~~,~~\cfrac{y-4}{2} \right)=\stackrel{midpoint~M}{(-1~~,~~-2)}\implies 
\begin{cases}
\cfrac{x-9}{2}=-1\\\\
x-9=-2\\
\boxed{x=7}\\
----------\\
\cfrac{y-4}{2}=-2\\\\
y-4=-4\\
\boxed{y=0}
\end{cases}
6 0
3 years ago
Please help pleaseeee <br> ----------<br> / 0.09 Type interger or decimal.
Mandarinka [93]

Answer:

0.09 = decimal

3 0
3 years ago
Read 2 more answers
Please I really need help!! Also show the work please
Natasha_Volkova [10]

Answer:

3x +5+2x+44+110+123+136=360

5x+418=360

c. l. t

5x=58

therefore X=11.5

8 0
3 years ago
The equation x squared + y squared = r squared
WITCHER [35]
(5-0)^2+(-2+0)^2=r^2\\&#10;25+4=r^2\\&#10;29=r^2\\\\&#10;\boxed{x^2+y^2=\sqrt{29}}
5 0
2 years ago
What is the intermediate step in the form (x+a)^2=b(x+a)
icang [17]

Answer:

Step-by-step explanation:

x²+2 ×x×5+5²=-20x+2×x×5-3

(x+5)²=-20+10x-3

(x+5)²=-10x-3

3 0
2 years ago
Other questions:
  • A mother wants to invest $14,000.00 for her sons future education. She invests a portion of the money in a bank certificate of d
    5·2 answers
  • A hard drive that is running slowly may not have been properly.
    9·1 answer
  • Which diagram shows the most useful positioning and accurate labeling of a rhombus in the coordinate plane?
    15·1 answer
  • What would a monthly payment be on a purchase of a $10,000 car at a 5.9% for 4 years?
    5·2 answers
  • What is 1/7 of 28.....​
    10·1 answer
  • NEED HELP ASAP!!! Please help and I will mark as brainliest!
    14·1 answer
  • Need help with these two, please thanks
    6·2 answers
  • Answer the following question and will mark Brainliest
    14·1 answer
  • Help help help help math
    6·2 answers
  • You are building a brick patio. the length of the patio is (x+11) feet.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!