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1.(n - 2) * 180st / n
a) (5-2)/5 *180 = 108
b)(15-2)/15 * 180 = 156
c) (8-2)/8 * 180 = 135
2.(6-2)*180 = 720
(12-2)*180 = 1800
(5-2)*180 = 540
3.
kwadrat
d - przekątna kwadratu = 2r
d = =
r =
l = 2 *r = 2 * = /
trójkąt
h = 2/3 * promien okręgu = 2/3*r
h trójkąta = = =
2/3* = = r
l = 2* = *
sześciokąt
d - przekątna sześciokąta = 2r = 2a
2a = 4 = r
l = 2*4 = 8
4.
h = = 18
a = 36 - długość boku
2/3 h = r
12 = r
Pole koła = * r^2 = * 12^2 = 144*3=432
5.
a)
P = = 25
a^2 = 100
a = 25
b)
1/3h = r
h = =
1/3h = = r
l = 2 * r = 2 * =
6. a = 2r
* r^2 = 16
r^2 = 16
r = 4
a = 2*4 = 8 - pole boku
Obw = 4a = 4*8 = 32
Pole kwadratu = a^2 = 8^2 = 64
te A z daszkami po prostu pomiń nie wiem co to jest
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1.(n - 2) * 180st / n
a) (5-2)/5 *180 = 108
b)(15-2)/15 * 180 = 156
c) (8-2)/8 * 180 = 135
2.(6-2)*180 = 720
(12-2)*180 = 1800
(5-2)*180 = 540
3.
kwadrat
d - przekątna kwadratu = 2r
d = =
r =
l = 2 *r = 2 * = /
trójkąt
h = 2/3 * promien okręgu = 2/3*r
h trójkąta = = =
2/3* = = r
l = 2* = *
sześciokąt
d - przekątna sześciokąta = 2r = 2a
2a = 4 = r
l = 2*4 = 8
4.
h = = 18
a = 36 - długość boku
2/3 h = r
12 = r
Pole koła = * r^2 = * 12^2 = 144*3=432
5.
a)
P = = 25
a^2 = 100
a = 25
b)
1/3h = r
h = =
1/3h = = r
l = 2 * r = 2 * =
6. a = 2r
* r^2 = 16
r^2 = 16
r = 4
a = 2*4 = 8 - pole boku
Obw = 4a = 4*8 = 32
Pole kwadratu = a^2 = 8^2 = 64
te A z daszkami po prostu pomiń nie wiem co to jest