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SURFACE AREA OF A CONE

LETTER B.

  • [tex] \tt SA = \pi rh + \pi r {}^{2} [/tex]
  • [tex] \tt SA = \pi(7 \: cm)(12 \: cm) + \pi(7 \: cm) {}^{2} [/tex]
  • [tex] \tt SA=263.76 + 153.86[/tex]
  • [tex] \underline {\tt {SA=417.62 \: {cm}^{2} }}[/tex]

SURFACE AREA OF A SPHERE

LETTER A.

  • [tex] \tt SA=4\pi {r}^{2} [/tex]
  • [tex] \tt SA=4\pi(4 \: cm) {}^{2} [/tex]
  • [tex] \underline {\tt {SA=200.96 \: {cm}^{2} }}[/tex]

SURFACE AREA OF A CYLINDER

LETTER D.

  • [tex] \tt SA=2\pi r² + 2\pi rh[/tex]
  • [tex] \tt SA=2\pi(3 \: cm)²+2\pi (3 \: cm) (5\:cm)[/tex]
  • [tex] \tt SA = 56.52 + 94.2[/tex]
  • [tex] \underline {\tt {SA=150.72 \: {cm}^{2} }}[/tex]