Respuesta :

Answer:

a= 75 cm

Step-by-step explanation:

a= 10×15

150÷2

a= 75 cm

Answer:

67.97 cm²

Step-by-step explanation:

The area (A) of the triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bc sinA

with b = 15, c = 10 and A = 115°, thus

A = 0.5 × 15 × 10 × sin115° = 75 × sin115° ≈ 67.97 cm²