Hello from MrBillDoesMath!
Answer:
72
Discussion:
Total Surface area = area of pyramid base + 4 ( area of triangular face)
In our case this becomes
4*4 + 4( (1/2) (4)(7) ) =
= 16 + (2)(4)(7)
= 16 + 56
= 72
which is the first choice.
Note: the area of a triangular face was computed using (1/2) b h, which in our case is
(1/2) (4) (7)
Thank you,
MrB
Answer:
the answer should be 56 :)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Always proceed by first extracting all common factors to all terms:
Notice that the factors: 5, x, and y are present in all terms, so we can extract them from the trinomial:
Now, the trinomial left (-x+2-3y) cannot be factored out, so then factoring is complete.
Take 5 to the left:
(10×5)x = y
50x = y
I believe that the answer is l<span>ength of PQ = length of P′Q′ since they are the same sides on both shapes
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