Advertisements
Advertisements
Question
Find the area of an equilateral triangle having each side 4 cm.
Advertisements
Solution
Area of an equilateral triangle having each side a cm is given by
`A=sqrt(3)/4a^2`
Area of the given equilateral triangle having each equal side equal to 4 cm is given by
a = 4 cm
`A= sqrt(3)/4 (4)^2`
`A=sqrt(3)/4 xx 16`
`A = 4 sqrt(3) cm^2`
APPEARS IN
RELATED QUESTIONS
A kite in the shape of a square with a diagonal 32 cm and an isosceles triangles of base 8 cm and sides 6 cm each is to be made of three different shades as shown in the given figure. How much paper of each shade has been used in it?
Find the area of a rhombus whose perimeter is 80 m and one of whose diagonal is 24 m.
Find the area of a quadrilateral ABCD in which AD = 24 cm, ∠BAD = 90° and BCD forms an equilateral triangle whose each side is equal to 26 cm. (Take √3 = 1.73)
Find the perimeter and area of the quadrilateral ABCD in which AB = 17 cm, AD =9 cm, CD = l2cm, ∠ACB = 90° and AC=l5cm.
Find the area of an equilateral triangle having each side x cm.
The perimeter of a triangullar field is 144 m and the ratio of the sides is 3 : 4 : 5. Find the area of the field.
The base of an isosceles right triangle is 30 cm. Its area is
A square and an equilateral triangle have equal perimeters. If the diagonal of the square is \[12\sqrt{2}\] cm, then area of the triangle is
A land is in the shape of rhombus. The perimeter of the land is 160 m and one of the diagonal is 48 m. Find the area of the land.
The length of each side of an equilateral triangle having an area of `9sqrt(3)`cm2 is ______.
