4 Construct a AABC, in which AB = 6 cm, ZB =60° and ZA = 45°. Construct a APQR similar to AABC such that each side of APQR is 1.5 times that of the corresponding sides of AABC.
Answers
Answer:
I take base BC = 5.5 cm. so A formed will be
A'BC'. SOLUTION:
Given, a right angled A ABC, in which BC
=5.5 cm, AB= 6.5 cm, ZB = 60°
STEPS OF CONSTRUCTION:
1. Draw a line segment BC = 5.5 cm. 2. At B draw LB = 60° and cut off BA = 6.5 cm from it.
3. Join AC. Thus AABC is a given right angled Triangle.
4. Now from B draw a ray BX making an
acute ZCBX on the side opposite to the vertex A.
5. Mark 3 points B1,B2,B3, on BY such that
BB1 B1B2 = B2B3. 6.Join B2C and from B3 draw B3C' || B2C intersecting BC at C.
7. From point C' draw C'A' II CA intersecting AB at A'. Thus, AA'BC' is the required triangle whose sides are 3/2 of the corresponding sides of AABC.
HOPE THIS WILL HELP YOU....
Steps of Construction:
i) Draw a line segment that is sufficiently long using a ruler.
(ii) Locate points A and B on it such that AB=6.5cm.
(iii) Construct a line segment AD, sufficiently large, such that ∠A=45˚
Construct a line segment BE, sufficiently large, such that ∠B=60˚ use a protractor to measure
+iv) Extend AD and BE to intersect at C.
⇒ ABC is the required triangle