Answer:
228 cm²
Step-by-step explanation:
The base of the pyramid is a regular quadrilateral (a square), so there are 4 congruent lateral faces.
The total surface area is therefore:
A = 36 cm² + 4 (48 cm²)
A = 228 cm²
138 x ? = 75
? = 75/138 = 0.544(3sf)
so about 54.35% (2dp) decrease
12/16 are shaded. 12/16 simplified is 3/4 or 75%.
Answer:
There is no result.
Step-by-step explanation:
This question does not have an answer, as you would need to plug in an x value to get any sort of answer.
Number 17 is A and18 is F