Question

Savitri had to make a cylindrical model. She wanted to use chart paper to make the curved surface of the model. kaleidoscope what would be the area of the cahrt required for her if ahe wanted to make a keliodescope of length 25cm and diameter 7cm​

Answer 1

Step-by-step explanation:

Curved surface Area of a cylinder is pie×r×h

GIVEN:

Diameter(d)= 7cm

Radius = d/2

=7/2

Length = 25cm

CURVED SURFACE AREA OF CYLINDER = PIE ×r×h

=22/7 × 7/2 × 25

=275

therefore area of chart required to make kaleidoscope is 275