lets work on the triangle with 60 and 70.
they make 130, and a triangle has 180 degrees, so that angle is 50
50+95+? is 180?
its 35
35+75 si 110, 180-110
so 70.
(-3,4 is negative and (5,4) is a positive number
-2|3x+2| = -12
|3x+2| = 6
3x + 2 = 6
3x + 4
x = 4/3
|3x+2| = -6
3x +2 = -6
3x = -8
x = -8/3
So we have the answers being 4/3 and -8/3
Answer:
Exact Area =
16pi - 32 square meters
Decimal Approx:
A = 18.3 sq m
Step-by-step explanation:
In degrees, it's 360° all the way around a circle. The 270° in the image is to show you that the small piece (the triangle and yellow segment) are in a 90° part of the circle. That is 1/4 of the circle, this helps with area two ways. We'll find 1/4 of the circle area and also, that makes the triangle base 8 and height 8. This helps us find triangle area. See image.