A triangle ABC is drawn to circumscribe a circle and AD=6cm,DB=4cm and CF=3cm then find perimeter of triangle ABC

Mathematics

2 answers:

faltersainse [42]3 years ago

6 0

Answer:

Perimeter of ABC = 26cm

Step-by-step explanation:

Given

AD = 6cm, DB = 4cm and CF = 3cm

It should be noted that

If the tangents are drawn from an external point show this means they are equally inclined to the line segment joining the centre to that point.

See attachment for procedure

sertanlavr [38]3 years ago

5 0

Answer:

26 cm

Step-by-step explanation:

I am trying to post the full solution of the question.. But it displays a message:

RUDE!! WE DON'T USE SUCH WORDS

PLEASE CHANGE IT!!

I was just posting the solution and no wrong word.

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Read 2 more answers

Item 18 you and your friend are selling tickets to a charity event. you sell 7 adult tickets and 16 student tickets for $120. yo

quester [9]

Answer:

Step-by-step explanation:

The two purchases can be written in terms of the cost of an adult ticket (a) and the cost of a student ticket (s):

7a +16s = 120 . . . . . . . . price for the first purchase

13a +9s = 140 . . . . . . . . price for the second purchase

Using Cramer's rule, the value of s can be found as ...

s = (120·13 -140·7)/(16·13 -9·7) = 580/145 = 4

The cost of a student ticket is $4.

_____

<em>Comment on Cramer's Rule</em>

Cramer's rule is particularly useful for systems that don't have "nice" numbers that would make substitution or elimination easy methods to use. If you locate the numbers in the equation, you can see the X-patterns that are used to compute the numerator and denominator differences.

The value of a is (16·140 -9·120)/(same denominator) = 1160/145 = 8. I wanted to show you these numbers so you could see the numerator X-pattern for the first variable.

Of course, graphical methods can be quick and easy, too.