Question

in terms of triangles....

find a if b=13, and theta =45 degrees. with the equation 1/2absin theta

Answer 1

wheres the '=' in your equation?

Answer 2

there is none.

Answer 3

there must be an '=' otherwise its not an equation

Answer 4

what you can do is simplify your expression by substituting for b and theta

Answer 5

thats what I'm given.

Answer 6

you omitted to say the area = 17
so
1/2absin theta = 17
(1/2) 13 a sin 45 = 17
a sin 45 = 17 / 6.5
a = 17/ (6.5* sin 45)
= 3 . 70

Answer 7

3.7 didn't work.
btw, flaw in your math.
17/6.5 is not 6.5

Answer 8

maybe thats my bad.

Answer 9

17/6.5 is 2.62

Answer 10

no a = 17 divided by (6.5 * sin 45) not 17 / 6.5 - you work out whats in the parentheses first

Answer 11

i'll check it out again..

Answer 12

its correct 3.70 correct to 3 decimal places

Answer 13

PEDMAS is a useful acronym to remind you of the order of operations in a maths expression it means
you calculate in following order

parenthesis exponent division/multiply add/subtract

so for example

3( 4 + 5)^2 - 2
= 3 * 9^2 - 2 - work out parentheses
= 3 * 81 - 2 now exponent 9^2

= 243 - 2 multiplication
= 241 subtraction

Answer 14

you need any more help?