Question

bantu jawab ya pake cara nya makasii

Answer 1

Jawaban:

25. D

26. C

27. C

Penjelasan dengan langkah-langkah:

25. keliling =

s + s + s + s =

15cm + 15cm + 13cm + 13cm = 56cm

26. 1/2 x a x t

1/2 x 10cm x 8cm =

5cm x 8cm = 40cm²

27. besar sudut ABC =

80° + (2x + 10)° + (5x - 15)° = 180°

75° + 7x° = 180°

7x° = 105°

x = 15°

sudut b = 2x + 10°

2(15) + 10° =

30° + 10° = 40°