![td0715](/avatars/3257.jpg)
td0715
19.08.2019 •
Mathematics
How to explain why a trapezoid is a quadrilateral but a quadrilateral is not always a trapezoid
Solved
Show answers
More tips
- A Animals and plants How ants survive winter: exploring the secrets of their winter life...
- F Food and Cooking Discover How to Properly Prepare Dough for Rasstegai...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Mathematics
- M Mathematics What would be the new coordinates?...
- M Mathematics Ms.tao flies roundtrip twice yearly between jacksonville and los angeles on business the distance between the two cites is 2,150 miles.estimate the distance she flies for both trips,then...
- B Business Given a cobb – Douglas production function Q = L0.5 K0.4 And the prices of capital and labour are ksh3 and ksh 4 respectively while the firm outlay is Kshs.108, calculate the optimal...
- M Mathematics Which shows all the exact solutions of sin^2 x+3 cos x-1=2? Give your answer in radians....
- B Business The credit department of lion’s department store in anaheim, california, reported that 30% of their sales are cash, 25% are paid with a credit card, and 45% with a debit card. twenty...
Ответ:
the sides or the sizes of the angles are ... just as long as it has four straight
sides that meet and close it up.
Once you start imposing some special requirements on the lengths of
the sides, or their relationship to each other, or the size of the angles,
you start making special kinds of quadrilaterals, that have special names.
The simplest requirement of all is that there must be one pair of sides that
are parallel to each other. That makes a quadrilateral called a 'trapezoid'.
That's why a quadrilateral is not always a trapezoid.
Here are some other, more strict requirements, that make other special
quadrilaterals:
-- Two pairs of parallel sides . . . . 'parallelogram'
-- Two pairs of parallel sides
AND all angles the same size . . . . 'rectangle'
(also a special kind of parallelogram)
-- Two pairs of parallel sides
AND all sides the same length . . . 'rhombus'
(also a special kind of parallelogram)
-- Two pairs of parallel sides
AND all sides the same length
AND all angles the same size . . . . 'square'.
(also a special kind of parallelogram, rectangle, and rhombus)
Ответ:
-> 4+(6+5)=15 and (4+6)+5=15