Answer:
Step-by-step explanation:
Remark
Area of an entire circle = pi * r^2
Area of a sector = angle / 360 * pi * r^2
Givens
angle = 140
radius = 8
Solution
Area = (140/360) * 3.14 * 8^2
Area =0.3889 * 3.14 * 64
Area = 78.15
Volume of the toy bouncy ball:
V = 4/3 r³ π
4.19 = 4/3 r³ · 3.14
r³ = ( 4.19 · 3 ) : ( 4 · 3.14 ) = 1
r = ∛1 = 1 in
Volume of the cube: V = a³
There are 64 toy balls. It means that there are 4 x 4 x 4 in the cube.
a = 4 · 2 r = 8 in
V = 8³ = 8 · 8 · 8 = 512 in³
Answer: B ) 512 in³
um, that statement is correct. is that the question?
Answer:
96°
Step-by-step explanation:
the base angles of an isosceles are congruent , both 42°
Then the third angle = 180° - 42° - 42° = 180° - 84° = 96°
