Question

What is the value of r to the nearest tenth?

Answer 1

Hence r=10.3 cms (rounded to tenth place)

Explanation:

In Triangle KLN ,

KN = 5 Cms

LN = ½ of LM

As the Perpendicular dropped from the center to the chord bisects it.

LM = 18 cm

LN = 9 cm

Now we have to find r or KL

We apply Hypotenuse Formula in this

The formula is given as

`c=√(a^2+b^2)`

Where c = r

a=5

b=9

Putting them in the formula

`r=√(5^2+9^2)`

`r=√(25+81)`

`r=√(106)`

`r=10.29`