3 2
Area = 98cm
26°
Х
Find the radius of the sector below. Give your answer to 1 decimal place.​

20.8 cm

Step-by-step explanation:

Given:

Area of sector = 98 cm²

θ = 26°

Required:

Radius (r) of the sector

Solution:

Area of a sector = θ/360 × πr²

Plug in the values

98 = 26/360 × πr²

Take the square root of both sides

20.7829132 = r

r = 20.8 (1 decimal place)

m = 6.57 and n = -2

Step-by-step explanation:

To answer this question, one will have to covert the thickness of a dollar to standard notation and then compare the two values.

4.3 × 10-3 = 4.3/1000

= 0.0043

Now, compare

0.07 =compared to 0.0043

0.07- 0.0043

= 0.0657

0.0657 = 6.57 x 10^-2

A quarter is thicker than a dollar by 6.57 x 10^-2 1

m × 10n 2

Comparing 1 and 2

m = 6.57 and n = -2