Решение:
Сторона:
a =
=
=
= 18.35
Сторона:
b =
=
=
= 150.29
Угол:
β° =
=
= 86.5°
Площадь:
S =
√4· b2 - a2
=
√4· 150.292 - 18.352
=
√4· 22587.0841 - 336.7225
=
√90348.3364 - 336.7225
=
√90011.6139
= 1376.3
Радиус вписанной окружности:
r =
=
·
√2·150.29-18.35
2·150.29+18.35
=9.175·√0.8849
= 8.631
Радиус описанной окружности:
R =
=
150.292
√4·150.292 - 18.352
=
=
= 75.29
Периметр:
P = a + 2b
= 18.35 + 2·150.29
= 318.93