If angle ec is a bisector then angles Bec and ced are the same making them both 4x+1. we know a line segment equals 180°. so if we take the 11x-12 and add it to 2(4x+1) we end up with 19x-10=180. you add 10 to both sides and get 19x=190 then you divide by both sides. you'll end up with x=10. you plug In the 10 with aeb and aec and add them together to get 139°. if you're looking for the equation, it's 15x-11.
Answer:
Mixed Number: 4 191919/1,000,000
Fraction: 4191919/1,000,000
Step-by-step explanation:
Answer:
B. 9
Step-by-step explanation:
m∠U = 2x°
m∠V = 4m∠U
= 4(2x°)
= 8x°
Complementary angles add up to 90°.
∠U + ∠V = 90°
2x° + 8x° = 90°
10x° = 90°
x = 90° ÷ 10°
= 9
Answer:
112 units²
Notes to know:
The lateral area and surface area of something are similar, but not the same
-> Surface area is the area of all the sides added up
-> Lateral area is the surface area of all the sides <em>not</em> including the top and bottom
Step-by-step explanation:
Since this is a rectangular prism, it will have 6 sides in total. That means the lateral area will be a total of four sides.
The sides we need to find for lateral area:
1: 2 * 4 = 8
2: 2 * 4 = 8
3: 12 * 4 = 48
4: 12 * 4 = 48
Add them together:
8 + 8 + 48 + 48 = 112 units²
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather