answersLogoWhite

0

You can use the 1/2 x a x b x SinC formula

Take 2 sides and an angle in between

You know the angles in an equilateral triangle are 60o each. All the sides are 8cm.

Plug the values of the sides into a and b

Plug the value of the angle into C. You get

1/2 x 8 x 8 x Sin60 = 27.7cm2

User Avatar

Wiki User

13y ago

Still curious? Ask our experts.

Chat with our AI personalities

BlakeBlake
As your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake
DevinDevin
I've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin
BeauBeau
You're doing better than you think!
Chat with Beau

Add your answer:

Earn +20 pts
Q: What is the area of an equilateral triangle whose sides measure 8cm?
Write your answer...
Submit
Still have questions?
magnify glass
imp