Предмет: Геометрия, автор: ekamakarenko

Найдите площадь поверхности прямой призмы , в основании которой лежит ромб с диагоналями , равными 10 24, и боковым ребром равным 19?

Ответы

Автор ответа: kirichekov
0
Sполн.пов=Sбок.пов+2*Sосн
Sбок.пов=Росн*Н
основание призмы ромб, рассмотрим прямоугольный треугольник:
катет а=5 (d₁:2, 10:2=5)
катет b=12 (d₂:2, 24:2=12)
гипотенуза с - сторона ромба, основания призмы
по теореме Пифагора:
c²=a²+b², c²=5²+12²
c=13
Росн=4*с, Росн=13*4=52

Sосн=(d₁*d₁)/2=(10*24)/2=120

Sполн.пов=52*19+2*120=988+240=1228

Sполн. пов=1228
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1. Many sports
popular in Kazakhstan.
a) are
b) is
c) aren't
d) am
2. Kazakhstan sportsmen won a great number of world records in
gymnastics, judo, wrestling, athletics."
a) has
b) haven't
c) hasn't
d) have
3. They an active part in all sports and sports activities professional
and amateur
a) love
Ob) live
c) attract
d) take

4. Thousands of people to the stadium to support their favorite team
and many thousands watch the game on TV. *
a) look
b) speak
O O
c) go
O d) work
5. There are
Kazakhstan. *
sporting societies and amateur clubs in the Republic of
a) some
b) different
c) only
d) any
6. Kazakhstan consistently performs in Olympic
a game
b) Commonwealth
c) Competitions
d) company
7. It is especially successful in
a) football
b) tennis
c) hockey
d) boxing
8. The reigning WBA WBC, IBF and IBO middleweight champion is Kazakh
boxer
a) Mukhtarkhan Dildabekov
b) Gennady Golovkin
c) Bekzat Sattarkhanov
d) Serik Sapiyev
represented Kazakhstan in his cycling career for the
9.
Astana team.*
a) Alexander Vinokourov
b) Andrej Kashechkin
c) Maxim Iglinsky
O d) Oleg Maskaev

10.
and
hosted the 2011 Asian Winter Games.*
a) Astana and Shymkent
O b) Karaganda and Pavlodar
c) Astana and Kokshetau
O d) Astana and Almaty
11. Modern technologies offer doctors a whole set of realistic and "smart"
for practicing various skills.
a) robots
b) pupils
c) people
d) animals
12. Another option for training medical skills is
a) robots
b) wearable devices
c) people
d) VR simulators
13.
.
will soon become "smart" and digital.*
a) hospitals
b) schools
c) companies
O d) market
14. In recent years, in particular, various that not only monitor
health indicators (fitness trackers), but also save people, have become
popular in the world. *
a) robots
b) wearable devices
c) people
d) VR simulators
15.
technologies are gaining momentum in medicine.*
a) computer
b) mouse
c) cable
d) 3D-print