redtimmy21 redtimmy21

06-08-2020
Mathematics

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Please answer this question now

Please answer this question now class=

Respuesta :

pawlossolomon pawlossolomon

07-08-2020

Answer:

61.8 sq.cm

Step-by-step explanation:

surface area of triangular pyramid is given by

A=bh+L (s1+s2+s3)

A=3 (2.6)+6 (3+3+3)=61.8 sq.cm

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