Tolong bantu jawab ​

Jawaban:

K persegi = 4 × s

= 4 × 15

= 60 cm

K set segitiga = 1/2 × ( a + b + c )

= 1/2 × 69

= 61,5 cm

K gabungan = K segitiga + K persegi

= 60 + 61,5

= 121,5 cm

mmf klo slh

Jawaban:

K1=4×s

=4×15

=60

K2=s+s+s

=29+25+15

=29+40

=69

Kgabungan:60+69=129