Question

The base Area of square pyramid is 12cm and it slant height is 10cm what is it surface area

Answer 1

Answer:

꒒ꋬ꓄ꏂꋪꋬ꒒ ꇙ꒤ꋪꊰꋬꉔꏂ ꋬꋪꏂꋬ ꄲꊰ ꋬ ꇙꆰ꒤ꋬꋪꏂ ꉣꌦꋪꋬꂵ꒐꒯ (4 ꒐ꇙꄲꇙꉔꏂ꒒ꏂꇙ ꓄ꋪ꒐ꋬꋊꍌ꒒ꏂꇙ): ꊰꄲꋪ ꓄ꁝꏂ ꒐ꇙꄲꇙꉔꏂ꒒ꏂꇙ ꓄ꋪ꒐ꋬꋊꍌ꒒ꏂ ꋬꋪꏂꋬ = (1/2)ꃳꋬꇙꏂ ꉧ ꁝꏂ꒐ꍌꁝ꓄.

...

ꇙ꒒ꋬꋊ꓄ ꁝꏂ꒐ꍌꁝ꓄ ꄲꊰ ꋬ ꇙꆰ꒤ꋬꋪꏂ ꉣꌦꋪꋬꂵ꒐꒯:

ꃳꌦ ꓄ꁝꏂ ꉣꌦ꓄ꁝꋬꍌꄲꋪꏂꋬꋊ ꓄ꁝꏂꄲꋪꏂꂵ ꅐꏂ ꀘꋊꄲꅐ ꓄ꁝꋬ꓄.

ꇙ2 = ꋪ2 + ꁝ. ...

ꇙ꒐ꋊꉔꏂ ꋪ = ꋬ/2.

ꇙ2 = (1/4)ꋬ2 + ꁝ2, ꋬꋊ꒯.

ꇙ = √(ꁝ2 + (1/4)ꋬ2)

꓄ꁝ꒐ꇙ ꒐ꇙ ꋬ꒒ꇙꄲ ꓄ꁝꏂ ꁝꏂ꒐ꍌꁝ꓄ ꄲꊰ ꋬ ꓄ꋪ꒐ꋬꋊꍌ꒒ꏂ ꇙ꒐꒯ꏂ.