Please help! I need help with this, this is 20 points!!!
1 answer:
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*see attachement below for the diagram
Answer:
(252π + 20) cm²
Step-by-step explanation:
The surface area of the resulting solid = curved surface area of the cylinder + area of 1 base of the cylinder + 2(slant height of the cone)
✔️Curved surface area of cylinder = 2πrh
r = ½(12) = 6 cm
h = 18 cm
C.S.A = 2*π*6*18 = 216π cm²
✔️Area of 1 base = πr²
r = ½(12) = 6 cm
Area = π*6²
Area = 36π
✔️Slant height of the cone = 10 cm
✅The surface area of the resulting solid = 216π + 36π + 2(10)
= (252π + 20) cm²
Answer:
C (1,2)
Step-by-step explanation:
The point that is a solution must satisfy both inequalities;
The inequalities are;
Point A
: True
:False
Point B (0,4)
: False
:True
Point C (1,2)
: True
:True
Point D(-2,-4)
: True
:False
The correct answer is C.