Question

Find the slant height x of the pyramid shown, to the nearest tenth.

6mm
7mm
7mm

Options:
A: 4.35
B: 9.2
C: 6.9
D: 3.9

Answer 1

Answer: C

Explanation:

Construct the segment connecting the point where the height meets to the base to where the slant height meets the base.

This forms a right triangle with legs of length 3.5 and 6.

So, by the Pythagorean theorem,
`x=√(3.5^2 + 6^2) \approx 6.9`