Respuesta :

Answer:

Answers are below.

Step-by-step explanation:

Problem 2:

Area = approx. 11.3 (rounded to nearest tenth)

A = 1 / 4b [tex]\sqrt{4a^{2} - b^{2} = }[/tex] 1/4 x 4 x [tex]\sqrt{4 *6^2 - 4^2}=[/tex] 11.31371

11.31371 rounded to the nearest tenth is 11.3

Problem 3: i'm not too sure sorry :(

Answer:

30.6

Step-by-step explanation:

10.8+6+13.8