Question

CSA of a cylinder is 4.4 m2 of r =0.7m.find it's height and TSA ​

Answer 1

Answer:

HEIGHT = 1 m

TSA = 7.84 Square metres

Step-by-step explanation:

CSA = 4.4

$2\pi \times xy = 4.4 \\ \\ 2 \times \frac{22}{7} \times 0.7 \times y = 4.4 \\ \\ y = 1 \: metres \\ \\ height \: = 1 \: m \\ \\ total \: surface \: area \: = 4.4 + 2\pi {x }^{2} \\ \\ = 4.4 + (2 \times \frac{22}{7} \times {0.7}^{2} ) \\ \\ = 4.4 + 3.08 \\ \\ = 7.84 \: \: square \: metres$