AC is a tangent so by definition, it touches the circle at exactly one point (point C) and forms a right angle at the tangency point. So angle ACO is 90 degrees
The remaining angle OAC must be 45 degrees because we need to have all three angles add to 180
45+45+90 = 90+90 = 180
Alternatively you can solve algebraically like so
(angle OAC) + (angle OCA) + (angle COA) = 180
(angle OAC) + (90 degrees) + (45 degrees) = 180
(angle OAC) + 90+45 = 180
(angle OAC) + 135 = 180
(angle OAC) + 135 - 135 = 180 - 135
angle OAC = 45 degrees
Side Note: Triangle OCA is an isosceles right triangle. It is of the template 45-45-90.
Answer:
B. Sometimes I am pretty sure
Well, split into two parts then multiply the sides and then round it to the nearest tenth.
Answer:
credit gain by retailer is $2257.39
Step-by-step explanation:
Given data:
Retaile price 83 4/3 c or 84.33c
Let Discount rate 6/7
Discount amount = (6/7)% of 84.33 c = 0.7228 C
Net credit received = 84.33c - 0.7228c = 83.607c
Net credit received = 83.607 c
Item required = 2700
Total discount = 2700 × 83.0607 = 225739.44c
Total discount = $2257.39
credit received by retailer is $2257.39
Answer:
41/8
Step-by-step explanation:
