7. diket:
r = 14cm
a = 135°
dit:
Luas Juring
penyeleseian:
Lj = a / 360° x 2 π r²
Lj = 135 x 2 . 22/7 . 14²
Lj = 3/8 . 2 . 22/7 . 196
Lj = 3/8 . 2 . 616
Lj = 3/8 . 1232
Lj = 3 . 154
Lj = 462 cm²
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7. diket:
r = 14cm
a = 135°
dit:
Luas Juring
penyeleseian:
Lj = a / 360° x 2 π r²
Lj = 135 x 2 . 22/7 . 14²
Lj = 3/8 . 2 . 22/7 . 196
Lj = 3/8 . 2 . 616
Lj = 3/8 . 1232
Lj = 3 . 154
Lj = 462 cm²