Answer:
384 cm²
Step-by-step explanation:
Since it is a square pyramid, the total surface area of the pyramid is the area of its square base plus the area of its 4 triangular faces.
Area of a triangular face
= ½ ×12 ×10
= 60 cm²
Base area of pyramid
= 12 ×12
= 144 cm²
∴ Surface area of pyramid
= 4(60) +144
= 240 +144
= 384 cm²
Answer:
x is 6
Step-by-step explanation:
50 tens would be 50 x 10 = 500
Answer:
The value of k is 4.
Step-by-step explanation:
To find the missing coordinate, we can use the slope equation and plug in all known values.
m(slope) = (y2 - y1)/(x2 - x1)
-1 = (k - 0)/(-2 - 2)
-1 = k/-4
Now we can solve using cross multiplication.
-1 = k/-4
k*1 = -1*-4
k = 4
