Please help ill give you the brainly crown
1 answer:
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Answer:
275.63 mm^2
Step-by-step explanation:
The measurements of the pyramids are
Edge length: 10
Egde width: 8.66 (because 10x8.66/2 = 43.3)
Height: 9
To find the surface area, use this formula, and you will get 275.63:
Answer:
The answer is the option
Step-by-step explanation:
see the attached figure with letters to better understand the problem
we know that
-----> by vertical angles
-----> given problem
-----> given problem
substitute
