If A+B+C = 180 degree then prove that sinA/2 sin B/ sin C/2≤18 .

If A+B+C = 180 degree then prove that $\sin A / 2 \sin B / \sin C / 2 \leq \frac{1}{8}$ .

Matching exercise

Match the items on the right to the items on the left.

STEP 1

STEP 2

STEP 3

STEP 4