Respuesta :

Answer: A) 48 in²; B) 35.76 in²

Step-by-step explanation:

A) a = 8 in; b = 12 in

A = (8 · 12)/2 = 96/2 = 48 in

B)

a = 8 in; b = ?; hypo = 12 in

a² + b² = c² ⇒ b² = c² - a²

b² = 144 - 64

b² = 80

b = √80

b = 8.94 in

A = ab/2 ⇒ (8 · 8.94)/2

A = 35.76 in ²

The area of A is 48

Explanation: the area of a triangle is 1/2bh which is 1/2(8)(12) equals to 48