62
Q:

# The base of a triangular field is three times its altitude. If the cost of cultivating the field at Rs. 24.68 per hectare be Rs. 333.18, find its base and height.

 A) B=900;H=300 B) B=300;H=900 C) B=600;H=700 D) B=500;H=900

Explanation:

Area of the field = Total cost/rate = (333.18/25.6) = 13.5 hectares
$13.5*10000m2=135000m2$
Let altitude = x metres  and  base = 3x metres.
Then, $12*3x*x=135000⇒x2=90000⇒x=300$

Base = 900 m and Altitude = 300 m.

Q:

The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Its area is:

 A) 48 cm2 B) 28 cm2 C) 69 cm2 D) 96 cm2

Explanation:

0 654
Q:

In a triangle, if the measures of two sides are 5 cm and 8 cm, then the third side can be:

 A) 3 cm B) 14 cm C) 2 cm D) 4 cm

Explanation:

0 725
Q:

In the given figure, if A) 8 cm B) 9 cm C) 11 cm D) 10 cm

Explanation:

0 408
Q:

In the given figure, $∠APO=35°$ if then which of the following options is correct? A) ∠APB = 60° B)  ∠APB = 80° C)  ∠APB = 35° D) ∠APB = 55°

Explanation:

0 690
Q:

The area of a semicircle is 77 sq.cm. Calculate its perimeter (in cm)

 A) 72 B) 49 C) 98 D) 36

Explanation:

0 737
Q:

The length of the diagonal and the breadth of a rectangle is 25 cm and 7 cm respectively. Calculate its area (in sq.cm)

 A) 336 B) 168 C) 240 D) 480

Explanation:

0 111
Q:

The area of an equilateral triangle is 18√3 sq.units. Find the value of side (in units) of the triangle.

 A) √2 B) 2√2 C) 3√2 D) 6√2

Explanation:

0 93
Q:

An arc length of 16$π$ units subtends an angle of 240 degrees. Find the radius 9in units) of the circle.

 A) 6 B) 12 C) 24 D) 36