Test Details

Heron's Formula

Solve in notebook

Feb 02, 11:00 PM

50 minutes

Feb 03, 12:00 PM

40.0 marks

MCQ

20 questions

19891998

mentor of Maths and science with diverse perspective

Class Details

Maths And Science

CBSE Mentor

Maths And Science

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Question Text

Question 1 :
If s is the semi-perimeter of a $\Delta A B C$ whose sides are a,b,c then s=.............?

Question 2 :
Side of an equilateral triangle is 4 cm. Its area is,

Question 3 :
One side of an equilateral triangle is 30 cm Its area is

Question 4 :
The sides of a triangle are in the ratio 3:4:5 then the measure of the greatest angle is

Question 5 :
The hypotenuse of a right angled isosceles triangle is 5 cm then its area is

Question 6 :
The sides of a triangle are 3 cm, 4 cm and 5 cm. Its area is

Question 7 :
The perimeter of an isosceles right angled triangle is $2p$. Its area is

Question 8 :
The ratio of the area of a square of side $a$ and equilateral triangle of side $a$, is

Question 9 :
The sides of a triangle are $5\ cm, 12\ cm$ and $13\ cm$, what is its area?

Question 11 :
If PQRS is a parallelogram with PR $=$ QS, and PR is perpendicular to QS,then PQRS is a

Question 12 :
If PQRS is a parallelogram with PR $=$ QS, then PQRS is a

Question 13 :
A kite with $x$ cm, $x$ cm, $y$ cm and $y$ cm is inscribed in a circle. The area of the kite is

Question 14 :
ABCD is a parallelogram with AB $=$ 8.3 cm and its perimeter is 25 cm. Then BC equals

Question 15 :
In parallelogram ABCD, AB $=$ (x+8) cm and CD $=$ (3x-2) Then AB equals

Question 16 :
Using Heron's formula find the area of a quadrilateral whose sides are $3\ cm, 4\ cm, 4\ cm$, and $5\ cm$. The angle between the first two sides is $90^0$.

Question 17 :
The difference between the area of a square and that of an equilateral triangle on the same base is $\displaystyle \frac{1}{4}cm^{2}$. What is the length of the side of the triangle?

Question 18 :
Find the area of a quadrilateral whose sides are $3\ cm, 4\ cm, 2\ cm$, and $5\ cm$. The angle between the first two sides is $90^o$. (Use Heron's formula)

Question 19 :
If an angle of a triangle remains unchanged but each of its two including sides is doubled, then the area is multiplied by:

Question 20 :
The triangular side - wall of a flyover have been used for advertisements, The sides of the walls are 122 m, 22m and 120 m. The advertisements requires rent of Rs 5000 per $\displaystyle m^{2}$ per year. A company hired one of its walls for 3 months. How much rent did it pay ?

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