Question

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

Answer 1

Answer:

C. 6.9

Step-by-step explanation:

Pretend this is a 2-d diagram and use the Pythagorean theorem.

Pythagorean theorem: a^2 + b^2 = c^2

a = 6 mm

b = 7/2 = 3.5 mm

c = x

6^2 + 3.5^2 = x^2

36 + 12.25 = x^2

48.25 = x^2

$\sqrt{48.25} = \sqrt{x^2}$

x = 6.9