Foundation Level IV JEE Mock test 7 Mathematics

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

• 15 cm²

• 12 cm²

• 9 cm²

• 6 cm²

The sides of a triangle are in a ratio of 25:14:12 and its perimeter is 510 m. The greatest side of the triangle is:

a) 270 m

b) 250 m

c) 170 m

d) 120 m

• 270 m

• 250 m

• 170 m

• 120 m

When the sum of squares of two sides of a triangle is equal to the square of the length of the third side, then it is called a:

a) Scalene triangle

b) Right triangle

c) Isosceles triangle

d) Equilateral triangle

• Scalene triangle

• Right triangle

• Isosceles triangle

• Equilateral triangle

The area of a triangle is equal to:

• Base x Height

• 2(Base x Height)

• ½(Base x Height)

• ½ (Base + Height)

• • Base x Height

• • 2(Base x Height)

• • ½(Base x Height)

• • ½ (Base + Height)

The area of an equilateral triangle having a side length equal to √3/4cm is:

• 2/27 sq.cm

• 2/15 sq.cm

• 3/16 sq.cm

• 3/14 sq.cm

• • 2/27 sq.cm

• • 2/15 sq.cm

• • 3/16 sq.cm

• • 3/14 sq.cm

In heron’s formula √s(s−a)∗(s−b)∗(s−c), what is the value of s if a, b, and c are sides of the triangle?

• a+b+c/4

• a+b+c

• a+b+c/2

• 2a+2b+2c

• • a+b+c/4

• • a+b+c

• • a+b+c/2

• • 2a+2b+2c

The perimeter of an equilateral triangle is 60 cm. Find the length of its sides.

• 30 cm

• 20 cm

• 5 cm

• 10 cm

To which of the following triangles, Heron's formula can be used to find the area.

• Scalene triangle

• Equilateral triangle

• Isosceles triangle

• All the above

What in the area of an equilateral triangle with side 2 cm?

    

• √6cm²

• √3cm²

• √8cm²

• 4cm²

If the perimeter of an equilateral triangle is 60 cm, then what is its area?

     

• 200√2cm²

• 100√2cm²

• 100√3cm²

• 200√3cm²