find the cost of painting the lateral area of an octagonal tower,whose slant height is 15m at the basic rate of 25 per sq. meter.the length of each side of the lower base is 4 meters and the upper base is 2m,find also the volume of the octagonal tower
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Answer:
Solution:
The formula used for the area of a
triangle is
A = (1/2)bh
where:
A = area of a triangle
b = length of the base
h = height
Listing the given values
b = 12 m
h = 4 m
Solving for A
A = (1/2)bh
A = (1/2)(12 m)(4 m)
A = 24 m²
Therefore, the answer is a. 24 sq. m