Math, asked by riddhijajoo2009, 6 days ago

pls slove thus question given here​

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Answered by CreativeAB
4

★ Answer ★

1. Let the unknown number be x.

So According to question,

(2a + 8b + 10) - x = -3a + 7b + 16

» -x = (-3a + 7b + 16) - (2a + 8b + 10)

» -x = -3a + 7b + 16 - 2a - 8b - 10

» -x = -5a - b + 6

» x = 5a + b - 6

2. Circumference of the circle = 154 cm

» 2πr = 154

» r = 154 × 7/22 × 1/2

» r = 24.5 cm (Radius)

Area of the circle = πr²

= 22/7 (24.5)²

= 22/7 (600.25)

= 1886.5 sq. cm

3. 3,18,65,00,000 = 3.1865 × 10⁹

[Standard Form]

4. Length of the rectangle = 35 cm

Perimeter of the rectangle = 100 cm

» 2(l + b) = 100

» 2(35 + b) = 100

» 70 + 2b = 100

» 2b = 30

» b = 15 cm (Breadth)

∴ Area = Length × Breadth

= 35 cm × 15 cm

= 525 sq. cm

4. (In Photo)

Regards,

CreativeAB

• The Genius •

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