Question

Make a design of an arch bridge that would connect two places which are separated by a river, 20 m wide. Indicate on the design the different measurements of the parts of the bridge. Out of the design and the measurements of its parts, formulate problems involving tangent and secant segments, and then solve. ​

Answer 1

a cylindrical glass of radius 4 cm and height 9 cm is filled with the glass

Answer 2

(

2

1

×

2

1

)+(

2

1

×

2)

3

=

2

2

1

×

2

2

3

=

2

2

(1+

3)