Answer:
2+ 8a²+16ah+8h²
Step-by-step explanation: f(a+h)= 2+8(a+h)²= 2+8(a+h)(a+h)
= 2+ 8(a²+2ah+h²) =2+ 8a²+16ah+8h²
The numbers that round to fifty are: 45,46,47,48,49,51,52,53,54.
Answer:
10,30
Step-by-step explanation:
Answer:
E
Step-by-step explanation:
1) Circle can intersect 1 corner of triangle.
2) Circle can intersect 2 sides of triangle 1 time.
3) Circle can intersect 2 sides of triangle 1 time and 1 corner of triangle.
4) Circle can intersect 2 sides of triangle 2 times.
5) Circle can intersect 2 sides of triangle 2 times and 1 side of triangle 1 time.
6) Circle can intersect 3 sides of triangle 2 times
I have attached the picture to understand better and to eliminate any confusions.
The area of each triangular face is
.. A = (1/2)*b*h
.. Aside = (1/2)*(6 cm)*(5 cm) = 15 cm^2
The area of the triangular base is
.. Abase = ((√3)/4)*s^2 = (√3)/4*(6 cm)^2 = 9√3 cm^2
The total surface area is the base area plus the area of the three sides.
.. Atotal = Abase + 3*Aside
.. = 9√3 cm^2 +3*15 cm^2
.. = (45 +9√3) cm^2
.. ≈ 60.6 cm^2
Actually, there's an error in the picture. The height of the side should be 4, and the length of the edge should be 5. Making that adjustment, the total area is 51.6 cm^2.
It is hard to tell what is intended. Not all answers are showing, so we can't "reverse-engineer" the problem from the answers.
