Tuesday

October 21, 2014

October 21, 2014

Posted by **deborah** on Thursday, March 25, 2010 at 11:05am.

given each set of data for ∆ABC:

a) solve for b given ∠B=88 degrees,a=31.5m,c=25.6cm

b) solve for a given ∠B=66 degrees,∠C=28 degrees,c=11.6cm

i) state whether the sine law or cosine law is required to solve the unknown value.

ii) use the law you selected in i) to solve for the unknown value, correct to one decimal place.

- math -
**Reiny**, Thursday, March 25, 2010 at 11:21amUse cosines law for SSS and SAS

use sine law for others

a) cosine law

b) sine law

- math -
**deborah**, Thursday, March 25, 2010 at 12:47pmthank you

**Answer this Question**

**Related Questions**

Math - Someone please help me figure this problem Given: Triangles ABC and BCD ...

geometry! - ABC is an acute angle triangle with points D and E on BC and AC, ...

geoMETRY! - ABC is an acute angle triangle with points D and E on BC and AC, ...

math - Given ∠ABC, if m∠A=11x, ∠B = 3x + 4, and m∠C = x...

Math (Geometry) - ABCD is a parallelogram with side lengths AB=15,BC=10 and &#...

geometry!!! please help me!!!! - ABC is a triangle with ∠ACB=45∘. D ...

Math (Geometry) - In triangle ABC, ∠A=20∘ and ∠B=80∘. ...

heeeeeeeelp math - In triangle ABC, ∠A=20∘ and ∠B=80∘. ...

Maths - ABCD is a parallelogram with side lengths AB=15,BC=10 and ∠ADC=75...

Geometry Please Help - Given: QS bisects ∠RQT; ∠R ≅ ∠ T ...