Question

find the TSA of cylinder with base of radius 2.8 cm and height 10 cm​

Answer 1

Answer:

r=2.8c.m

h=10c.m

2πr(r+h)

2×22/7×2.8(2.8+10)

2×22×0.4×12.8

44×0.4×12.8

=17.6×12.8

225.28

Answer 2

Answer:

TSA = 225.28 cm²

Step-by-step explanation:

Given:

→ Radius = 2.8 cm

→ Height = 10 cm

To find:

• TSA of cylinder = ?

Solution:

We know that;

$\dag \: \boxed{\purple{\bf{TSA \: of \: cylinder = 2 \pi r(r+h)}}}$

Plug-in the given values in this formula.

$\hookrightarrow \: \sf{TSA \: of \: cylinder = 2 \times \dfrac{22}{7}\times 2.8(2.8+10)}$

$\dashrightarrow \: \: \sf{TSA \: of \: cylinder = 2 \times \dfrac{22}{7}\times 2.8 \times 12.8}$

$\implies \sf{TSA \: of \: cylinder = \dfrac{2 \times 22 \times2.8 \times12.8}{7}}$

$\therefore \boxed{\underline{\red{\bf{TSA \: of \: cylinder = 225.28 \:cm^{2}}}}}$