Question

Find the area of the triangle with a = 12.9, b = 12.4, and c = 17.1. Round to the nearest tenth.

Question 15 options:

80.1 units2

79.1 units2

79.7 units2

82.7 units2

Answer 1

Answer:

79.7 units2

Step-by-step explanation:

You can find the area by first finding s, which is a+b+c/ 2. Then to find the area you use $\sqrt s(s-a)x (s-b) x (s-c)$

Answer 2

79.7 units using the area formula