Question

Tolong jawabkan No 24&25 please..
Pakai pembahasannya.
Makasih

Answer 1

24) luas layang layang = 1/2 x d1 x d2
= 1/2 x (6+6) x (12+14)
= 1/2 x 12 x 26
= 156 cm^2 (C)

25) luas total = luas persegi + luas setengah lingkaran
= (s x s) + (1/2 x phi x r x r)
= (14 x 14) + (1/2 x 22/7 x 7 x 7)
= 196 + 77
= 273 cm^2 (A)

Answer 2

L = 1/2 x d1 x d2 
   = 1/2 x (6+6) x (12+14)
   = 1/2 x 12 x 26
   = 1/2 x 312
   = 156 = c
L = (14 x14) + (1/2 x 22/7 x 7 x 7)
   = 196 + (1/2 x 154)
   = 196 + 77
   = 273 = a