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3 years ago

Regular triangular pyramid has the slant height k=12 cm and lateral area AL = 198 cm2. Find the length of the base edge.

1 answer:

3 0

If s represents the edge length of the base, the lateral area is given by
A = (1/2)*(3s)*(k)
We can substitute the given numbers and solve for s.
198 cm² = (1/2)*(3s)*(12 cm)
(198 cm²)/(18 cm) = s
s = 11 cm

The length of a base edge is 11 cm.

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Step-by-step explanation:

Given [Missing from the question]

$(8).\ (-6,-2)\ \\ (9).\ (-12,18)\ \\ (10).\ (2,0)$

Required

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The solutions to this question is open and have different solutions

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So, the equations are:

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$x + y = 2$ and $x - y = 2$

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Step-by-step explanation:

8 + g = 15

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