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Chapter 11: Q21. (page 426)

Consecutive sides of the figures are perpendicular. Find the area of each figure.

Short Answer

Expert verified

Area of the figure (A)=49.4sq.units

Step by step solution

01

Step 1. Given information.

Consecutive sides of the figure is perpendicular.

02

Step 2. Concept  Used.

Since the two triangles are right angles triangle.

Where, i is the base of the triangles ,b is the height of the triangles and H is the Hypotenuse of the triangles.

Sin260=b10b=10Sin260Cos260=l10l=10Cos260

03

 Step 3. Let’s calculate the area of the figure. 

Now, area of the figure

A=(b脳l)=(10sin260)脳(10cos260)=(49.4)sq.units

Therefore, the area of the figure (A)=49.4sq.units

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The area of a rectangle is(y2+7y)and height(y). What is the perimeter and base of the rectangle?

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