Question

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Answer 1

Area of square = L x W
= 5 x 5
= 25
Area of triangles = B x H / 2
= 4 x 5 / 2
= 20 / 2
= 10
There are 4 triangles so: 10 x 4 = 40
40 + 25 = 65
Surface area of pyramid = 65 units^2

Answer 2

Answer:

$72.16 \: {units}^{2}$

Step-by-step explanation:

$surface \: \: \: area \\ = {a}^{2} + 2a \sqrt{ \frac{ {a}^{2} }{4} + {h}^{2} } \\ = {5}^{2} + 2 \times 5 \times \sqrt{ \frac{ {5}^{2} }{4} + {4}^{2} } \\ = 72.16 \: {units}^{2}$

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