olivetree8044 olivetree8044

21-06-2018
Mathematics

contestada

PLEASE HURRY!!! AB = 20 cm, m∠A = 30° , and $m∠C = 45° . Express the number of centimeters in the length of BC in simplest radical form.

Respuesta :

Аноним Аноним

21-06-2018

Using the Sine Rule:-

20 /sin 45 = BC / sin 30

BC = 20 sin 30 / sin45

= 20 * 1/2 / 1 / sqrt2
= 20 * 1/2 * sqrt2
= 10 sqrt2 answer

Answer Link

Otras preguntas

Factor Completely 2x²-4x+6

Which conditional statements are definitions? Choose all answers that are correct. (Points : 1) If a polygon is a quadrilateral, then it has an even number of

4 students each made a list of prime numbers . Eirc : 5,7,17.23 Maya; 3,5,13,17 Ball; 2,3,17,19, Jordan; 7,11,13,21 How made an error and incluled a compiste nu

in the scene of the throne room what did it tell you about the three friends Annabeth Grover and Percy

A factory packages 4250 boxes of cereal. The number of oat cereal boxes is 715 more than the number of wheat cereal boxes. The number of fruit cereal boxes is 5

explain why support for the ku klux klan varied in the 1920s with respect to issues such as anti-immigration , anti-african american, anti-catholic ,anti-jewish

Which groups provided most of the labor foe the construction of the transcontinental railroad

a model car is made to a scale of 2 to 25. if the model is 15in. long, how long is the actual car?

Byron and Kate's dinner cost $18.23. about how much money should they leave for a 15% tip?

Which early Greek blind poet is thought to have written the Iliad and Odyssey? A. Homer B. Euripides C. Sophocles D. Thucydides