Question

plz help quickly and dont swamp​

Answer 1

18)

Gain = Selling Price - Cost Price

Gain = 1260 - 1120

Gain = ₹140

19)

2 ( x + 4 ) = 12

x + 4 = 6

x = 2

20)

x + 110 = 180° [ linear pair ]

x = 70°

z = x [ vertically opposite angles ]

z = 70°

x + y = 180° [ corresponding linear pair ]

70° + y = 180°

y = 110°

21)

a) DO = EP ( 6cm )

OG = ET ( 10cm )

angle DOG = angle PET

b) yes

c) SAS

d) yes. because they are corresponding parts of congruent triangles

Answer 2

Answer:

19)

$i)2(x + 4) = 12$

$2x + 4x = 12$

$6x = 12$

$x = \frac{12}{6}$

$x = 2$

$ii) \frac{5}{2} p = - 10$

$p = \frac{ - 10 \times 2}{5}$

$p = - 4$

Other answers are in attachment.

☺️☺️ Hope it helps you!!!