-212 feet, -122 feet, 2 feet, 202 feet
Answer:
Number of self-Help books sold = 252 books
Step-by-step explanation:
Total books sold last week = 1,125
Central angle for the Self-Help slice = 80.64°
Total angle in a circle = 360°
How many of the books sold were Self-Help books?
Number of self-Help books sold =
Central angle for the Self-Help slice / Total angle in a circle × total number of books sold
= 80.64° / 360° × 1,125
= 0.224 × 1,125
= 252
Number of self-Help books sold = 252 books
Answer:
the area of a circle is πr²
the outer circle area = π 4x²
the inside circle area = π.6²=36π
the outer circle area - the inside circle area = he shaded region
π 4x² - 36π =220π cm2 it implies x²-9 =55 and x²=64, and x =sqrt(64)=8
the value of x is 8
The missing figure is attached
Answer:
∠x = 72° and ∠y = 54°
Step-by-step explanation:
From the first patterns
∵ x is the vertex angle of each isosceles triangle
∵ All the vertices angles of the 5 Δs meet at one point
∵ The sum of the measures of angles around a point is 360°
∴ x + x + x + x + x = 360°
∴ 5 x = 360°
- Divide both sides by 5
∴ x = 72
∴ ∠x = 72°
The sum of the measures of the interior angle of a triangle is 180°
∵ The measure of the vertex angle of each Δ is x
∵ The measures of the base angles of each Δ is y
∴ x + y + y = 180°
- Add like terms in the left hand side
∴ x + 2 y = 180°
∵ x = 72°
∴ 72 + 2 y = 180
- Subtract 72 from both sides
∴ 2 y = 108
- Divide both sides by 2
∴ y = 54
∴ ∠y = 54°