Advertisements
Advertisements
प्रश्न
Draw a line segment AB of length 7 cm. Using ruler and compasses, find a point P on AB such that `(AP)/(AB) = 3/5 `.
उत्तर
Steps of Construction:
Step 1: Draw a line segment AB = 7 cm
Step 2: Draw a ray AX, making an acute angle ∠BAX.
Step 3: Along AX, mark 5 points (greater of 3 and 5) `A^1 , A^2 , A^3 , A^4 and A^5` such that
`A A_1 = A_1 A_2 = A_ A_3 = A_3 A_4 = A_4 A_5`
Step 4: Join A5 B.
Step 5: From A3 , draw A3 P parallel to A5B ( draw an angle equal to 5 ∠AA5 B ), meeting AB in P.
`"Here, P is the point on AB such that"(AP)/(PB) =3/2 or (AP)/(AB) = 3/5.`
APPEARS IN
संबंधित प्रश्न
Write down the equation of a line whose slope is 3/2 and which passes through point P, where P divides the line segment AB joining A(-2, 6) and B(3, -4) in the ratio 2 : 3.
Construct a triangle similar to a given ΔABC such that each of its sides is (5/7)th of the corresponding sides of Δ ABC. It is given that AB = 5 cm, BC = 7 cm and ∠ABC = 50°.
To divide a line segment AB in the ratio 4 : 7, a ray AX is drawn first such that ∠BAX is an acute angle and then points A1, A2, A3, .... are located at equal distances on the ray AX and the point B is joined to ______.
A rhombus ABCD in which AB = 4cm and ABC = 60o, divides it into two triangles say, ABC and ADC. Construct the triangle AB’C’ similar to triangle ABC with scale factor `2/3`. Select the correct figure.
What is the ratio `(AC)/(BC)` for the line segment AB following the construction method below?
Step 1: A ray is extended from A and 30 arcs of equal lengths are cut, cutting the ray at A1, A2,…A30
Step 2: A line is drawn from A30 to B and a line parallel to A30B is drawn, passing through the point A17 and meet AB at C.
What is the ratio `(AC)/(BC)` for the following construction: A line segment AB is drawn. A single ray is extended from A and 12 arcs of equal lengths are cut, cutting the ray at A1, A2… A12.A line is drawn from A12 to B and a line parallel to A12B is drawn, passing through the point A6 and cutting AB at C.
The basic principle used in dividing a line segment is ______.
Draw a triangle ABC in which BC = 6 cm, CA = 5 cm and AB = 4 cm. Construct a triangle similar to it and of scale factor `5/3`.
Draw an isosceles triangle ABC in which AB = AC = 6 cm and BC = 5 cm. Construct a triangle PQR similar to ∆ABC in which PQ = 8 cm. Also justify the construction.
Draw a line segment of length 7.5 cm and divide it in the ratio 1:3.