6. Solve for x. 72° 3x 89 99
1 answer:
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Answer:
Step-by-step explanation:
Area of a sphere is
let d be the diameter of the moon and D be the diameter of the earth
d = 1/4 D
Area of Earth =
Area of moon =
Answer:
BC ≈ 14 units
Step-by-step explanation:
using Pythagoras' identity in the right triangle.
the square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is
BC² + AB² = AC²
BC² + 18² = 23²
BC² + 324 = 529 ( subtract 324 from both sides )
BC² = 205 ( take square root of both sides )
BC = = 14.317.. ≈ 14 units ( to the nearest unit )