Advertisements
Advertisements
प्रश्न
Construct traingle ABC, when: BC = 3 cm, AC = 4 cm and AB = 5 cm. Measure angle ACB. Give a special name to this triangle.
उत्तर
Steps of Construction:
(1) Draw a line segment AB = 5 cm
(2) From A, with the help of compass cut arc AC = 4cm
(3) From point B cut an arc BC = 3 cm.
(4) Join AC and BC.
(5) AABC is required right-angled triangle.
Measuring ∠ACB = 90°
APPEARS IN
संबंधित प्रश्न
Construct traingle ABC, when : AB = 5.4 cm, ∠A = 30° and ∠B = 90°. Measure ∠C and side BC.
Construct a triangle ABC given AB = 6 cm, BC = 5 cm and CA = 5.6 cm. From vertex A draw a perpendicular on to side BC. Measure the length of this perpendicular.
Construct a triangle ABC given BC = 5 cm, AC = 6 cm and ∠C = 75°. Draw the bisector of the interior angle at A. Let this bisector meet BC at P ; measure BP
Observe the figure below and write the type of the triangle based on its angles.
Δ PQR is ... triangle
Observe the figure below and write the type of the triangle based on its sides.
Δ ABC is ... triangle
Observe the figure below and write the type of the triangle based on its sides.
Δ DEF is ... triangle
Draw five triangles and measure their sides. Check-in each case, if the sum of the lengths of any two sides is always less than the third side.
Name the type of following triangle :
∆ABC with AB = 8.7 cm, AC = 7 cm and BC = 6 cm.
Name polygon.
Make two more examples of this.
A diagonal is a line segment that joins any two vertices of the polygon and is not a side of the polygon. Draw a rough sketch of a pentagon and draw its diagonals.