Mohon di bantu pliss...

a.
sin30 = PR/RQ
1/2 = PR/24√2
PR = (24√2 x 1)/2
PR = 12√2 cm
b.
Cos30 = PQ/RQ
√3/2 = PQ/24√2
PQ = (24√2 x √3)/2
PQ = (24√6)/2
PQ = 12√6 cm
c.
L = 1/2 x 12√6 x 12√2
L = 1/2 x 144√12
L = 72√12 cm2

Semoga membantu :)