Question

:)

Answer 1

Simply use the Pythagorean theorem to find DC. Triangle DCB is a right triangle. One of its legs is BC, given as 15.2 cm. Its hypotenuse is DB, given as 18.4 cm.

Answer 2

Yes, you can use Pythagorean theorem here.
a^2 + b^2 = c^2
where c is the hypotenuse

Answer 3

So,
15.2^2 + b^2 = 18.4^2
Solve for b.

Answer 4

For part b, use a trig function to find the angle. Are you familiar with sin, cos, and tan?

Answer 5

@EcoBoost ?

Answer 6

Perfect! :)

Answer 7

I don 't get CD=3.2

Answer 8

But. I do get CDB to be 56 :)

Answer 9

Yes, ADC is correct, but check your. DC

Answer 10

Perfect! :)

Answer 11

You got it! :)

Answer 12

What did you get for Ab.

Answer 13

AB?

Answer 14

Ok, yeah. I get bigger than that.

Answer 15

Sweet ,

Answer 16

!

Answer 17

Aw, you are very welcome. I'm glad I could help!