Area of a Triangle

IMPORTANT

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

EASY
IMPORTANT

If the area of the XYZ is 28 m2 and base of the triangle PQR is 7 cm and height is a cm. Both the triangles are congruent. Find the value of a.

EASY
IMPORTANT

Which two triangles will have equal area.

EASY
IMPORTANT

If the height and base of theABC is 10 cm  and 8 cm, then the area of EFG is _____ cm2

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EASY
IMPORTANT

If the area of KLM is 48 m2 then the area of XYZ is 38 m2.

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EASY
IMPORTANT

What are congruent triangles?

HARD
IMPORTANT

The area of a triangle is 24 cm2  and its height is 4 cm. Find its base.

MEDIUM
IMPORTANT

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

EASY
IMPORTANT

The sum total area of the 4 triangles in the polygonal field is

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EASY
IMPORTANT

Look at the figure below.

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Which of the following is equal to the sum of the areas of ABE and ECD?

EASY
IMPORTANT

What is the total surface area of the 2 triangular prisms that are formed by slicing the cube?

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EASY
IMPORTANT

The area of each of the isosceles triangles formed in the pentagon outside the star is

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MEDIUM
IMPORTANT

What is the area of the triangle DEF?

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MEDIUM
IMPORTANT

 

What is the area of the hexagon when D and F are joined ?

Remember that the each side of the heptagon measures 12 cm.

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MEDIUM
IMPORTANT

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A pair of bullocks can plough only a portion of a large field A, B, C, D, in a day.

The area of the field ploughed by the bullocks is _____ sq m.

Use the following information to calculate.

F is at a distance of 30 m from A and B the perpendicular distance from to F is 30 m.

E is at a distance of 10 m from D and the perpendicular distance from C to E is 40 m.

The length of one side of the field AD is 130 m.

EASY
IMPORTANT

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

EASY
IMPORTANT

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

EASY
IMPORTANT

The circles shown in the figure are of the same radii 3.2 cm.
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The area of the triangle formed in the figure is _____3 cm2.

EASY
IMPORTANT

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.

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EASY
IMPORTANT

The area of given quadrilateral ABCD is

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MEDIUM
IMPORTANT

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.

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