Question

What is the height of an equilateral triangle with sides that are 12 cm long? Round to the nearest tenth.

Answer 1

6 because The height of an equilateral triangle forms a right triangle with one side as the hypotenuse and half of one side as a leg. The height is the other leg, so
a is 1/2 length of side =1/2(12 cm)=6cm
b is the height b=h
c is the hypotenuse, one of the sides=12cm
+a%5E2%2Bb%5E2=c%5E2,
%286+cm%29%5E2%2Bh%5E2=%2812+cm%29%5E2
36+sq+cm+%2B+h%5E2=144+sq+cm subtract 36 sq cm from each side.




h%5E2=108+cm Find square root of each side.
h=10.4 cm ANSWER: The height is 10.4 cm. Answer B is correct.
B.) s=length of side; d=diagonal
d=sqrt%282%29s
d=sqrt%282%29%28250+ft%29
d=1.414%28250+ft%29
d=353.6 feet ANSWER

Answer 2

Woah. Well, thanks for the answer. :0

Answer 3

your welcome

Answer 4

The quiz said it was 10.4 :"D But I got 6 working it out myself, so I'd have gotten it wrong anyways. Thanks again for trying!

Answer 5

so sorry

Answer 6

It's ok. At least I only missed two, and it was just a practice.