Question

plz answer the question ​

Answer 1

Step-by-step explanation:

TSA of fig 1= ha + hb + hc + 2× 1/2 ab

= h(a +b +c) + ab

CSA = h(a +b ) + ab

volume = hc × height of fig

2nd fig

CSA = area of upper side 3 triangles their sum

TSA = CSA + area of lower side triangles

volume = area of lower triangle × height

3rd

CSA = pie rl + 2pir × r^2

volume = 1/3pie r^2 × h + 2/3pie × r^3

4th

CSA = 2pie ×r ×h +2pie × r^2

TSA = 2pie r (h+r) + 2pie × r^2

volume = pie × r^2 ×h + 2/3 pie ×r^3

same as for 5th also only just add one

time CSA ,TSA ,VOL of hemisphere

6th

CSA = pie rl + 2pir × r^2 + 2pie × r^2

TSA = same as CSA

Volume = 1/3pie r^2 × h + 2/3pie × r^3 + pie × r ^2 × h

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