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круглые тела и многогранники

Authored by Надежда Барковская

Mathematics

10th Grade

Used 2+ times

круглые тела и многогранники
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Объем пирамиды

V=SоснHV=S_{осн}H

V=13SоснHV=\frac{1}{3}S_{осн}H

V=12πRlV=\frac{1}{2}\pi Rl

V=43πR3V=\frac{4}{3}\pi R^3

2.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Боковая поверхность конуса

S=πRlS=\pi Rl

S=12πRlS=\frac{1}{2}\pi Rl

S=2πRlS=2\pi Rl

S=12PоснHS=\frac{1}{2}P_{осн}H

3.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Площадь поверхности сферы

S=43πR2S=\frac{4}{3}\pi R^2

S=4πR2S=4\pi R^2

S=πR2S=\pi R^2

S=PоснHS=P_{осн}H

4.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Объем усеченного конуса

V=13π(l2+R2+Rl)V=\frac{1}{3}\pi\left(l^2+R^2+Rl\right)

V=13πl(R12+R1R2+R22)V=\frac{1}{3}\pi l\left(R_{1^{ }}^2+R_1R_2+R_2^2\right)

V=13H(S1+S2+S1S2)V=\frac{1}{3}H\left(S_1+S_2+\sqrt{S_1S_2}\right)

V= 13πH(R12+R1R2+R22)V=\ \frac{1}{3}\pi H\left(R_1^2+R_1R_2+R_2^2\right)

5.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Площадь полной поверхности цилиндра

s=2πR(R+H)s=2\pi R\left(R+H\right)

S=2πRHS=2\pi RH

S=πl(R+H)S=\pi l\left(R+H\right)

S=πR2S=\pi R^2

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Площадь трапеции

S=12d1d2sinαS=\frac{1}{2}d_1d_2\sin\alpha

S=12absinαS=\frac{1}{2}ab\sin\alpha

S=12(a+b)S=\frac{1}{2}\left(a+b\right)

S=ahS=ah

7.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Площадь боковой поверхности прямой призмы

S=12PоснHS=\frac{1}{2}P_{осн}H

S=PоснHS=P_{осн}H

S=2PоснHS=2P_{осн}H

S=πRlS=\pi Rl

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