Question

slove the above
PLEASE

NO SPAM
CORRECT ANSWERS NEED
PLEASE ​

Answer 1

Step-by-step explanation:

given,

area of base = 1386

height= 28

area of base of cone = πr²

1386= 22/7×r²

63= r²/7

63×7= r²

(7×3)²= r²

21= r

according to phythagorus theorem

l²= p²+b²

l²= 28²+21²

l²= 784+441

l²= 1225

l²= 35²

l= 35

hence slant height is 35

CSA= πrl

= 22/7×21×35

= 22×21×5

=2310

#666

Answer 2

Step-by-step explanation:

$\pi {r}^{2} = 1386 \\ {r }^{2} = 1386 \times \frac{7}{22} \\ {r}^{2} = 63 \times 7 \\ {r}^{2} = 441 \\ r = 21 \: cm \\ h = 28 \: cm \\ we \: know \: that \\ {l}^{2} = {r}^{2} + {h}^{2} \\ = {21}^{2} + {28}^{2} \\ = 441 + 784 \\ {l}^{2} = 1225 \\ l = 35 cm \\ curved \: surface \: area = \pi \times r \times l \\ = \frac{22}{7} \times 21 \times 35 \\ = 2310 {cm}^{2}$

please brain list mark