Answer:
<h2>100πcm².</h2><h2>None of the options is correct</h2>
Step-by-step explanation:
Total surface area of a cone
= 
Since the diagram is half of a cone, its surface area will be 
r = radius of the cone
l = slant height
From the diagram diameter of the cone = 16m;
r = 16/2 = 8m
l = 17m

Answer:
.8x = $70.40
x = 70.4/.8
x = $88
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given that,
The area of a triangle, 
Base, 
We need to find the height of the triangle.
The formula for the area of the triangle is given by :

So, the height of the triangle is
.
Answer:D
Step-by-step explanation:
The 21x-8 and the 13x-4 are they angles or are they line segments?