Math Problem | MCQs

Explanation

Percentage = (210 ÷ 420) × 100 = 50%

Explanation

To find the percentage, divide 210 by 480 and multiply by 100:

(210 ÷ 480) × 100 = 43.75%

Explanation

Explanation

17m

Area of the rectangular carper =120 cm2
Perimeter =46 m
2(l+b)=46
(l+b)=46/2

l+b=23

And, length × breadth=120

Now, we know that :

(l−b)2=(l+b)2−4lb
(l−b)2=(23)2−4×120
(l−b)2=529−480
(l−b)2=49

(l−b)2=(7)2

Hence, l−b=7

And l+b=23

By adding, we get 2

Explanation

The Greek letter $\pi$(pronounced as Pie) represents the ratio between the circumference and the diameter of a circle.

i.e. $\frac{circumferenceofthecircle}{Itsdiameter\left(d\right)}=\pi$

$=Circumferenceofthecircle=\pi \times d$

$=2.\pi .r$

Explanation

Explanation:

Let the given points be A(5,-7) and B(9,8)


A(5,-7) and B(9, 8)

Here,

X1 = 5 , Y1 = -7 and X2 = 9, Y2 = 8


By using the distance formula, we have

AB² = (X2-X1)² + (Y2-Y1)²

AB² = (9-5)² + (8-(-7))²

AB² = (4)² + (15)²

AB² = 16+225


AB² = 241

AB = ✓241 = 15.5 units.

Hence,


Distance between the points A(5,-7) and B(9,8) is 15.5 units.

Explanation

Explanation

Explanation

We have: l = 20 ft

and lb = 680 sq. ft.

So, b = 34 ft

Length of fencing = (l + 2b)

= (20 + 68) ft

= 88 ft

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ND10-12-2022

Explanation

The area of a triangle will be a=1m, b = 2m, c = 3m, a,b,c being lengths of respective sides is 3 sq m 

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Step-by-step explanation:

S = (1 + 2 + 3)/2 = 3