Question

(2) Find the surface area of a sphere of radius 7 cm.
(3) Draw segment AB of length 7 cm and bisect it.
(4) If tan 0 = 1, then find sec e.​

Answer 1

Answer:

4π*49

Step-by-step explanation:

draw a line segment of length 7cm. (AB)

now keep the compass at A open it more than half of AB.

draw 2 arcs from A one above and one below the line.

repeat the same keeping Same radius from B also cutting the previous 2 arcs.

join the points of intersection of 2 arcs.

tanx = 1 so x=π/2.

now sec π/2= not defined.