Ответ:
a) Sбок=460cm²; Sпол=640cm²
б) Sбок=37,8cm²; Sпол=52,36cm²
Объяснение:
a)
a=18cm
b=5cm
h=10cm
Sбок=Росн*h=2(a+b)*h=
=2(18+5)*10=460cm²
Sосн=аb=18*5=90cm²
Sпол=Sбок+2*Sосн=460+2*90=
=460+180=640сm²
___________
б)
а=2,6cm
b=2,8cm
h=35mm=3,5cm
Sбок=Pосн*h=2(a+b)*h=
=2(2,6+2,8)*3,5=37,8cm²
Sосн=аb=2,6*2,8=7,28cm²
Sпол=Sбок+2*Sосн=37,8+2*7,28=
=52,36cm²
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
a) Sбок=460cm²; Sпол=640cm²
б) Sбок=37,8cm²; Sпол=52,36cm²
Объяснение:
a)
a=18cm
b=5cm
h=10cm
Sбок=Росн*h=2(a+b)*h=
=2(18+5)*10=460cm²
Sосн=аb=18*5=90cm²
Sпол=Sбок+2*Sосн=460+2*90=
=460+180=640сm²
___________
б)
а=2,6cm
b=2,8cm
h=35mm=3,5cm
Sбок=Pосн*h=2(a+b)*h=
=2(2,6+2,8)*3,5=37,8cm²
Sосн=аb=2,6*2,8=7,28cm²
Sпол=Sбок+2*Sосн=37,8+2*7,28=
=52,36cm²