AOC and BOD are diameters of a circle, center O. Prove that triangle ABD and triangle DCA are congurent by RHS.

AC=BD ( because diameter always same)

Angle B = Angle C ( they line on the same segment)

Angle A is 90° (because they angle made by diameter)

similarly Angle D is 90°

Triangle ABD and Triangle DCA are congruent by RHS

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers