Question

I don’t understand. Need help:/

What is the area of triangle ABC?


O 10.39
O 31.18
O 124.71
O 62.35

Answer 1

62.35

Explanation:

Triangle ABC is an isosceles triangle. That means Side CA equals Side CB.

Drawing an altitude line from point A, it divides Side CB into halves. 1/2 of 12 = 6. (Let's call that point M)

Side AM^2 = AC^2 - CM^2

---------------------> 12^2 - 6^2 = 144 -36 = 108

AM =
`√(108)` = 6
`√(3)`

To find the area: CB * AM * 1/2

---------------------> 12 * 6
`√(3)` * 1/2 = 36
`√(3)`

36
`√(3)` as a decimal is approximately 62.35

Answer 2

124.71 i’m pretty sure cause 60 is on both sides