Question

NEED ASAP!! Find the surface area of the pyramid.

Answer 1

A ≈ 473.63

Step-by-step explanation: To find the surface area for a pyramid, we can use this formula: $A=lw+l\sqrt{(\frac{w}{2})^2 } +h^2+w\sqrt{(\frac{l}{y} } )^2+h^2$

Solution: $10\times10+10\times\sqrt{(\frac{10}{2} } )^2+18^2+10\times\sqrt{(\frac{10}{2} } )^2+18^2=423.63$

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