First of all, triangles angles add up to 180 degrees.
BCD=120. To find BCA subtract 180-120 to get 60 degrees.
We know what ABC is, it equals 85, so far we have 2 angles.
Lets add them up, 85+60=145
Since the angles must add up to equal 180 we're going to subtract 180-145
Which equals 35, BAC=35 degrees.
-Seth
Difference between the area of the triangle and square is 25
Step-by-step explanation:
- Step 1: Find the area of the triangle given its 3 sides using the Heron's formula.
Area of the triangle = where s =
⇒ s = (6 + 8 + 10)/2 = 24/2 = 12
=
= = = 24 sq. units
- Step 2: Find the area of the square with perimeter = 28 units.
Perimeter of the square = 4 × side = 28
⇒ Side of the square = 28/4 = 7 units
⇒ Area of the square = (side)² = 7² = 49 sq. units
- Step 3: Find the difference between the area of the square and triangle.
Difference = 49 - 24 = 25
Answer:
x = -4 and y = -1
Step-by-step explanation:
Adding the equations,
4x + 0y = -16
4x = -16
x = -4
Plugging x = -4 into the second equation,
-4 + y = -5
y = -1
Therefore, x = -4 and y = -1
Answer:
<h3>0.10</h3>
Step-by-step explanation:
0.<u>10</u>3 <= You want to round the number to two decimal places, we will use the 3 to see if it should be rounded up, or stay the same
3 is less than or not equal to 5, so therefore it should be rounded down
0.10 <= Your answer should be like this, or 0.1 if you don't want to add the 0 (because they are the same thing)
<em>I hope this helps! Make sure to give me the brainliest answer , because it is greatly appreciated. Thank You!</em>