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Maths CBSE Live product
Class 7
A Tale of Three Intersecting lines
Design by Sides
8.
Construct a right angled triangle
Question:
5
m.
Construct a triangle right angled at
\(A\)
having the base
\(AB = 5.6 \ cm\)
using the set square
.
Answer variants:
Construction:
Step - 1:
Draw the slanting line segment AB = 5.6 cm
Draw the base line segment AB = 5.6 cm
Draw the vertical line segment AB = 5.6 cm
.
Step - 2:
Keep the ruler aligned to the base. Place the set square on the ruler, such that one of the edges of the right angle touches the ruler.
Keep the ruler aligned to the base. Place the ruler on the set square, such that one of the edges of the right angle touches the ruler.
Keep the ruler aligned to the base. Place the set square on the ruler, such that one of the edges of the acute angle touches the ruler.
Step - 3:
Slide the set square along the ruler till the vertical edge of the set square touches the vertex \(B\).
Slide the set square along the ruler till the vertical edge of the set square touches the vertex \(A\).
Slide the set square along the ruler till the horizontal edge of the set square touches the vertex \(A\).
Step - 4:
Mark a point C along the set square and draw the altitude to AB through C using the vertical edge of the set square.
Mark a point B along the set square and draw the altitude to AC through B using the vertical edge of the set square.
Mark a point C along the set square and draw the altitude to BC through B using the vertical edge of the set square.
Step - 5:
Join BC to get the required triangle right angled at A
Join BC to get the required triangle right angled at B
Join AC to get the required triangle right angled at B
.
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