AYUDENME, 15 puntos para los 2 problemas, pleaseeeee?

1)

(3x / 2 + x / 2)2×x = 100

(4x) / 2×x = 100

4x² = 100

x = √(100 / 4) = √(25) = 5

Base mayor = 3(5) / 2 = 15 / 2 = 7, 5

Base menor = 5 / 2 = 2, 5

Altura = 5

2)

5x×2x / 5 = 98

2x² = 98

x = √(98 / 2) = √(49) = 7

Base mayor y base menor son iguales

5(7) = 35

Altura = 2(7) / 5 = 14 / 5 = 2, 8

Espero te sirva.