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Answer:

Step-by-step explanation:




Basically, you need to add a number to both sides so that you can reduce the left side to a square. In this case, you add 4.
Answer:
352 m^2
Step-by-step explanation:
Each of the four congruent triangular faces has an area that is half the product of the base edge length and the slant height:
A = 1/2·bh = 1/2·(8 m)(22 m) = 88 m^2
Then the total lateral area is 4 times this:
LA = 4·88 m^2 = 352 m^2
Answer:
√61
Step-by-step explanation:
Using
√(y2-y1)^2 + (x2-x1)^2