Решение:
Сторона:
a =
=
=
= 0.7737
или:
a =
=
=
= 0.7737
Сторона:
b =
=
=
= 0.7737
или:
b =
=
=
= 0.7737
Площадь:
S =
√4· b2 - a2
=
√4· 0.77372 - 0.77372
=
√4· 0.59861169 - 0.59861169
=
√2.39444676 - 0.59861169
=
√1.79583507
= 0.2592
Радиус вписанной окружности:
r =
=
·
√2·0.7737-0.7737
2·0.7737+0.7737
=0.3869·√0.3333
= 0.2234
Радиус описанной окружности:
R =
=
0.77372
√4·0.77372 - 0.77372
=
=
= 0.4467
Периметр:
P = a + 2b
= 0.7737 + 2·0.7737
= 2.321