Answer:747/1000
Step-by-step explanation:
Answer:
1.0001 * 10^-4.
Step-by-step explanation:
Count the number of digits after the decimal point until you come to the first digit which is greater than 0. For the given value that is the first 1. The count is
4, so the answer is 1.0001 * 10^-4.
1. Since we have <span>two sides (AC and AB) and the included angle (60°), we are going to use the law of cosines to find the length of BC:
</span>
<span>
We can conclude that the length of the side BC is </span>
.
2. To find the area of triangle ABC we are going to use Heron's formula:
where
is the area of the triangle
is the semi-perimeter of the triangle
But first, we are going to find the semi-perimeter of our triangle using the formula:
We can infer for our triangle and from our previous calculation that
,
, and
. Lets replace those values to find the semi-perimeter of our triangle:
Finally, we can use Heron's formula to find the area of our triangle:
We can conclude that the area of our triangle is
10.42 square units.
Answer:
Side = 5ft Side = 15 ft side = 3 ft
Step-by-step explanation: