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Chapter 11: Q34. (page 427)

The diagonals of a rectangle are18cmlong and intersect at a" width="9" height="19" role="math">60鈭�angle. Find the area of the triangle.

Short Answer

Expert verified

The area of the triangle is813cm2 .

Step by step solution

01

Step 1. Given information.

The diagonal of a rectangle are18cm long and intersect at60鈭� angle.

02

Step 2. Concept  Used.

The area of the rectangle is
A=length脳breadth

03

Step 3. Let’s calculate the area of each square and the value of s.

The diagonal of a rectangle are18cm long.

i.eAC=BD=18cm

We know that the diagonals of a rectangle bisect each other.

ThusA=lbA=(93)(9)A=813鈥夆赌�cm2

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