Answer:
The length of the circular arc is 8.64 inches
Step-by-step explanation:
Length of circular arc (L) = central angle/360° × 2πr
central angle = pie/4 = 45°, r (radius) = 11 inches
L = 45°/360° × 2 × 3.142 × 11 = 8.64 inches (to two decimal places)
Answer:
4a
Step-by-step explanation:
Use <span><span> bh</span> + (S</span>1+ S2 + S3<span>)H to find the T.A.
</span>Triangle: base 'b', height 'h', and sides S1, S2 and S3<span>
</span>use L=Ph to find L.A. (<span>the surface area of all sides, or faces, that are not the base)</span>
L= the lateral area of the prism, P= the perimeter of one base, h= the height of the prism
Answer:
20
Step-by-step explanation:
4^2 + 5^2 = x^2
16 + 25 = 41
x^2 = 41
x = sqrt 41 or 6.4