Answer:
<h2>
50°</h2>
Step-by-step explanation:
AB = AC
So, it is a isosceles triangle.
<B = <C = 65°
Sum of angles of triangle = 180°
< A + < B + <C = 180°
plug the values:
X + 65° + 65° = 180°
Calculate the sum
X + 130° = 180°
Move constant to R.H.S and change its sign
x = 180° - 130°
Calculate the difference
X = 50°
Hope this helps...
Good luck on your assignment...
Answer is B, 21.6
Let me know if you need an explanation
Answer:
a) 412 have a brother or sister in the school
b) 242 are girls
c) 339 are 13 years old or under
Step-by-step explanation:
Part a:
515 x 80%
412
Part b:
515 x 47%
242
Part c:
515 x 66%
339
If the radius r of the circle is known, the segment length would be 2*pi*r*5/16 or r*5pi/8. (Circumference of the circle times the fraction that’s in the sector.)