diazn4480 diazn4480

12-03-2021
Mathematics

contestada

Find the surface area of the pyramid below. PLS HELPPP

Find the surface area of the pyramid below PLS HELPPP class=

Respuesta :

akposevictor akposevictor

17-03-2021

Answer:

149.45 cm²

Step-by-step explanation:

Surface area of pyramid = ½Pl + BA

Perimeter of the base (P) = 7 + 7 + 7 = 21 cm

Slant height (l) = 12.2 cm

Area of base (BA) = ½*bh = ½*7*6.1 = 21.35 cm²

Plug in the values

Surface area = ½*21*12.2 + 21.35 = 149.45 cm²

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