Thursday

January 29, 2015

January 29, 2015

Posted by **anon** on Wednesday, January 12, 2011 at 5:22pm.

Finding a and b

- trigonometry -
**helper**, Wednesday, January 12, 2011 at 5:55pmsin A = 3/5 = a/c

if side a = 3 and side c = 5

you should recognize this as a

special rt triangle of 3-4-5

so b = 4

If not

a^2 + b^2 = c^2

3^2 + b^2 = 5^2

b^2 = 16

b = 4

so, a = 3, b = 4

**Answer this Question**

**Related Questions**

trigonometry - sinA= 3/5 and C=17 Finding a and b Their two triangles and i have...

Trigonometry - IfA=340, prove that 2sinA/2 = -(v1+sinA) + (v1-sinA)

Trig - Please help with this one. I've worked it out in so many ways and can't ...

maths(trigonometry) - prove that sinA-cosA+1/sinA+cosA-1=1/secA-tanA

Maths - Hi, can someone give me the answer to this question: secA-tanA=1/4. Find...

further mathematics - Let P=(cosA sinA) (sinA cosA) Q=(cosB sinA) (sinB cosA) ...

Math - In any angle ABC prove tht the perimeter = a/Sin A(Sin A + Sin B + Sin C...

trigonometry - If sinA+tanA=p then sin2A?

Trigonometry - If 180<A<270 and sinA= -(5)/3, find tan(1/2)A.

Math trigonometry - Prove sinA/1+cosA =tan1/2A