Answer:
23 blocks
Step-by-step explanation:
add..........
(1) Area of the whole circle:
A = πr²
Substitute the value of BA to r,
A = (π)(10 ft)² = 314.16 ft²
(2) Area of the sector is calculated through the equation,
As = πr²(x/360°)
where x is the intercepted angle. Substituting the values,
As = π(10 ft)²(60°/360°) = 52.36 ft²
(3) Area of the equilateral triangle BAJ,
At = (√3)(a2²/4
where a is also equal to r or BA. Substituting,
At = (√3)(10 ft)²/4 = 43.30 ft²
The area of the region not shaded is equal to,
= (A) - (As - At)
Substituting,
= (314.16 ft²) - (52.36 ft² - 43.30 ft²)
<em>Area = 305.10 ft²
</em><em />Therefore, the answer to this answer is letter D. <em>
</em>
Answer:
3.0 x 10^1
Step-by-step explanation:
Step 1) 4,500,000,000 / 149,600,000 = about 30
Step 2) 3.0 x 10^1 = 30