Question

in PQR the obtuse angle is 105 and the shorter sides measure 4 and 7 units Rounded to the nearest tenth what is the area of triangle pqr

Answer 1

Yes the other person answer the correct response. The answer is 13.5 see picture.

Explanation:

Answer 2

the answer is 13.5

Explanation:

A=105

B=4

C=7

so you just plug in using the trigonometric formula for area which in this case would be

1/2(4)(7)sin(105)

then you just type that into a graphing calculator (make sure its set to degrees) then you get 13.52 which would be 13.5 rounded.