Area of a Triangle
Area of a Triangle: Overview
This topic covers concepts, such as, Area of Triangles & Areas of Congruent Triangles etc.
Important Questions on Area of a Triangle
If the area of the is and base of the triangle is and height is . Both the triangles are congruent. Find the value of

Which two triangles will have equal area.

If the height and base of the is and , then the area of is _____

If the area of is then the area of is .


The area of a triangle is and its height is . Find its base.

If two surfaces have same areas then their shapes can be different.

A pair of bullocks can plough only a portion of a large field , in a day.
The area of the field ploughed by the bullocks is _____ .
Use the following information to calculate.
is at a distance of from and the perpendicular distance from to is .
is at a distance of from and the perpendicular distance from to E is .
The length of one side of the field is .

In the given figure, CD is perpendicular to AC and ∆ABC is an equilateral triangle.
If the area of ∆ACD is 90 sq. m, then the area of ∆ABC is _____$\sqrt{3}$ sq. m.

The area of an equilateral triangle whose side measures 6$ \surd 3$ inches is _____$\sqrt{3}$ sq inch.

The circles shown in the figure are of the same radii .
The area of the triangle formed in the figure is _____ .

Preeti forms a quadrilateral PQRS by joining two triangular blocks as shown below. The sum of the areas of the two triangles is 192 $ {\text{cm}}^{2}$. She finds that the altitude of Δ$ \text{PSR}$ is 7 cm and PR = 24 cm. The altitude of Δ$ \text{PQR}$ is _____ cm.

The area of given quadrilateral ABCD is

Rita is lost in a maze and walks from points A -> B -> C -> A and then again from A->D-> E-> F -> A covering a total distance of 39 metres. The distance between points A and B is 5 metres. If points ABC form an equilateral triangle and ADEF form a square, the distance between points D and E is _____ metres.

Sujatha has a pyramid block having the base as an equilateral triangle of side 6 cm. She used this to trace the base on a paper. The perimeter of the triangle formed on the paper is _____ cm.

Is the given statement true or false?
If the sides of an equilateral triangle are cut into half to make a smaller triangle, the perimeter of this triangle would be half of the original triangle.

The area of an equilateral triangle is 9√3 sq cm. What is the perimeter of the equilateral triangle?

6 match sticks of length 3 cm each are used to form one equilateral triangle. What is the perimeter of this triangle?

Two equilateral triangles of perimeter 15 cm each are rearranged together to form a hexagon. The perimeter of the hexagon is

The perimeter of a park which is in the shape of an equilateral triangle is 45 metres. One side of the park is _____ metres.
