Step-by-step explanation: So if the Temperature last night was at -3o C and now it is -4o C it went down by 1 but dont forget the negative symbol.-1

you can think like this: -3-4=-1

7 0

4 years ago

Pls help i really really need help on this. We just learned this but i can't remember it.

bulgar [2K]

Answer:

114 cm²

Step-by-step explanation:

Area of shaded region

= area of circle -area of square

$\boxed{area \: of \: circle = \pi {r}^{2} }$

Given that radius= 10cm, r= 10cm.

$\boxed{area \: of \: square = side \: \times side}$

Let the length of a side of the square be x cm.

Applying Pythagoras Theorem,

10² +10²= x²

100 +100= x²

x²= 200

$x = \sqrt{200}$

Area of square

= x²

= 200cm²

Area of shaded region

= 3.14(10²) -200

= 3.14(100) -200

= 314 -200

= 114 cm²

8 0

3 years ago